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Seiko Marinemaster


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Seiko Marinemaster 49mm United States of America, Florida, Hallandale Beach
Seiko Prospex Marine Master 1000M Darth Tuna
$1,399
+ $59 for shipping
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4.90 (268)
US
Seiko Marinemaster Steel 44.3mm Black No numerals United States of America, Florida, Orlando
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Seiko Marinemaster
$3,875
+ $50 for shipping
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4.85 (338)
US
Seiko Marinemaster Steel 44.3mm Black No numerals United States of America, Pennsylvania, Philadelphia
Seiko Prospex Marinemaster SLA021 300m
$2,977
+ $45 for shipping
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4.90 (1,397)
US
Seiko Marinemaster Steel 44mm Blue United States of America, Illinois, BUFFALO GROVE
Seiko PROSPEX PROFESSIONAL MARINEMASTER STAINLESS STEEL BLUE...
$2,500
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4.82 (350)
US
Seiko Marinemaster Steel Black No numerals United States of America, Louisiana, Baton Rouge
Seiko Marinemaster
$2,000
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US
Seiko Marinemaster Steel 39mm Black No numerals United States of America, Pennsylvania
Seiko Pre-Owned Seiko Prospex Diver Limited Edition SLA017
$6,450
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4.90 (1,411)
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Seiko Marinemaster Steel Black No numerals United States of America, California, Healdsburg
Seiko Marine Master Professional Ref: SBDX012 50th Anniversary...
$4,150
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4.94 (18)
US
Seiko Marinemaster Steel Black No numerals United States of America, Washington, USA
Seiko MARINE MASTER PROFESSIONAL 300M SBDX023 / SLA021 JAPAN...
$3,150
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4.94 (261)
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Seiko Marinemaster Steel 42mm Black No numerals United States of America, New Jersey, Fords
Seiko Marine Master 200 M Black Prospex Watch
Price on request
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4.94 (66)
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Seiko Marinemaster Steel 49mm Black United States of America, Florida, Pompano Beach
Seiko Prospex MarineMaster Tuna S23627J1 Limited Edition 800...
$3,495
+ $49 for shipping
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4.86 (292)
US
Seiko Marinemaster Steel 44mm Green No numerals United States of America, New York, Brooklyn
Seiko Prospex Marine Master SLA019J1
$3,000
Excl. shipping
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US
Seiko Marinemaster Steel 42mm Green No numerals United States of America, California, Chino Hills
Seiko Prospex 140th Anniversary Limited Edition Marine Master...
$1,700
Excl. shipping
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US
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Prospex MarineMaster SBEC001
$2,225
+ $45 for shipping
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4.90 (1,397)
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Seiko Marinemaster Steel 44.3mm Black No numerals United States of America, Nevada, LAS VEGAS
Seiko Marinemaster SLA021J1
$2,888
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US
Seiko Marinemaster Titanium 52.4mm Blue No numerals United States of America, California, san pedro
Seiko Marine Master Professional 1,000M Diver Automatic...
$4,100
Excl. shipping
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Seiko Marinemaster Black United States of America, Florida, Orlando
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Seiko Prospex Marine Master Diver Professional Limited Edition
$2,575
+ $50 for shipping
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4.85 (338)
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Seiko Marinemaster Steel Blue No numerals United States of America, Ohio, USA
Seiko Prospex Marine Master Blue Dial SLA023 ( NEW ) JAPAN...
$3,150
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4.94 (261)
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Seiko Marinemaster Steel 44.3mm Blue United States of America, California, Burlingame
Seiko Prospex Marine Master Professional 300M Diver Automatic...
$3,159
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4.82 (3,241)
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Seiko Marinemaster Steel 47mm Black No numerals United States of America, New Jersey, Upper Saddle River
Seiko Tuna Marinemaster Profesional 300M 7C46-7010
$995
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4.51 (102)
US
Seiko Marinemaster Steel Black No numerals
Seiko Marinemaster sbdx001 Hardlex
$2,873
+ $217 for shipping
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IT
Seiko Marinemaster Titanium 49mm Black
Seiko Prospex Marine Master Divers's 35th Anniversary Limited...
$1,939
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5.00 (13)
JP
Seiko Marinemaster Steel Blue No numerals United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster 300m SLA023
$3,300
+ $45 for shipping
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4.90 (1,397)
US
Seiko Marinemaster Steel 44.8mm Black No numerals
Seiko PROSPEX MARINEMASTER 1968 Hi-Beat Ref-SLA025 Cal-8L55...
$5,844
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4.85 (508)
DE
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster prospex SBDX017
$2,709
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4.94 (6)
ES
Seiko Marinemaster Steel 44mm Black No numerals
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Seiko DIVER 300M Professional Black Series Prospex Limited...
$2,683
Excl. shipping
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ES
Seiko Marinemaster Titanium 50mm Black No numerals
Seiko Prospex SEA Marinemaster 600m Tuna SBDB013 Spring Drive
$3,793
+ $140 for shipping
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4.87 (2,444)
DE
Seiko Marinemaster 44.3mm United States of America, California, San Mateo
Seiko Marine Master Professional 300M - SBDX023
$3,229
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4.82 (3,241)
US
Seiko Marinemaster Steel 47.7mm Black No numerals United States of America, New Jersey, Upper Saddle River
Seiko Prospex Marine Master 300m Japan Edition Ref SBBN033
$1,395
+ $29 for shipping
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4.51 (102)
US
Seiko Marinemaster Titanium 49,4mm Black No numerals
Seiko Prospex Professional Marinemaster 1000m Feb. 2021 FULL SET
$2,163
+ $130 for shipping
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4.92 (673)
ES
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Prospex SLA021 Marinemaster Black dial Full set 2020’s
$2,656
+ $108 for shipping
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4.91 (496)
IT

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Seiko Marinemaster Steel Black United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster 300M SLA025
$6,777
+ $90 for shipping
Professional dealer
4.90 (1,397)
US
Seiko Marinemaster Steel 44.3mm
Seiko Prospex Marine Master SLA045J1 Tonga Sea Exclusive 2021...
$3,028
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4.96 (828)
JP
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster SBDX017
$1,842
+ $103 for shipping
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4.86 (212)
HK
Seiko Marinemaster Steel 42mm Black No numerals
Seiko Marine Master 200 M Black Prospex Watch - 2022
$1,084
+ $227 for shipping
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4.87 (446)
IT
Seiko Marinemaster Steel 44,8mm Black No numerals
Seiko Prospex Marinemaster 1968 High-Beat SLA025 Limited Edition
$5,203
+ $140 for shipping
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4.87 (2,444)
DE
Seiko Marinemaster Titanium 44.8mm Black
Seiko Prospex LX Marinemaster Ref. SBDB027 / SNR029 NEW
$4,646
+ $151 for shipping
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4.91 (932)
JP
Seiko Marinemaster Steel Black
Seiko Prospex Marinemaster Professional Diver 300M Stahl Quarz...
$2,167
+ $163 for shipping
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4.85 (1,492)
DE
Seiko Marinemaster Steel 44.3mm Black No numerals
Seiko Marinemaster
$2,858
+ $96 for shipping
Professional dealer
4.90 (25)
IT
Seiko Marinemaster Steel 44,3mm Black No numerals
Seiko Marinemaster 300
$2,602
Excl. shipping
Private Seller
AT
Seiko Marinemaster Steel 45mm Black
Seiko 箱付き【SEIKO】セイコー プロスペックス ダイバーズ SBDX012/8L35-00G0 50周年記念...
$3,771
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4.86 (1,350)
JP
Seiko Marinemaster Titanium 49.4mm
Seiko Prospex Marine Master 1978 Quartz Divers 40th Anniversar...
$2,001
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4.96 (828)
JP
Seiko Marinemaster Titanium 45mm Black
Seiko Spring Drive Prospex Marinemaster SBDB001
$2,586
+ $103 for shipping
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4.86 (212)
HK
Seiko Marinemaster Steel Black No numerals
Seiko Black Series Prospex Marinemaster 300 SLA035J1
$2,819
+ $107 for shipping
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4.98 (37)
AT
Seiko Marinemaster Steel 44,8mm Black No numerals
Seiko Prospex Marinemaster 1968 High-Beat SLA025 Limited Edition
$5,636
+ $248 for shipping
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4.87 (2,444)
DE
Seiko Marinemaster Steel 44.3mm Green
Seiko プロスペックス マリーンマスター プロフェッショナル セイコー創業140周年記念限定 / PROSPEX...
$2,386
+ $240 for shipping
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4.84 (73)
JP
Seiko Marinemaster Ceramic 48mm Black
Seiko Marine Master Automatic Professional "Emperor Tuna" -...
$4,120
+ $271 for shipping
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4.88 (153)
MC
Seiko Marinemaster 49mm
Seiko Auth SEIKO Prospex Marine Master Professional 7C46-0AH0/...
$1,004
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4.80 (92)
JP
Seiko Marinemaster Steel 44mm Blue No numerals
Seiko Marinemaster 300 professional
$8,023
Excl. shipping
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FR
Seiko Marinemaster Steel Black No numerals
Seiko Marinemaster
$2,927
+ $163 for shipping
Professional dealer
4.99 (44)
GR
Seiko Marinemaster Steel 44mm
Seiko Prospex MARINEMASTER Diver SBDX001
$4,226
+ $108 for shipping
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4.86 (438)
DE
Seiko Marinemaster Steel 44mm Green No numerals
Seiko Prospex SBDC079 Baby MM MarineMaster JDM GINZA LIMITED...
$1,855
+ $103 for shipping
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4.86 (212)
HK
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Prospex MarineMaster Professional 300M SBDX017
$2,642
+ $109 for shipping
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4.98 (101)
AU
Seiko Marinemaster Steel 43mm Black No numerals
Seiko Marinemaster SBDX001 Prospex 8L35-0100
$3,251
+ $140 for shipping
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4.87 (2,444)
DE
Seiko Marinemaster Steel Black No numerals
Seiko Marinemaster SEIKO Marinemaster 300 SBXD001
$2,548
Excl. shipping
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PT
Seiko Marinemaster Ceramic 52.4mm Green
Seiko プロスペックス マリンマスター プロフェッショナル 機動戦士ガンダム 40周年記念 量産型ザク 1000本限定モ...
$2,789
+ $240 for shipping
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4.84 (73)
JP
Seiko Marinemaster Steel 44,3mm Green No numerals
Seiko Prospex Divers MarineMaster "MM300" "The 140th Anniversary“
$2,494
Excl. shipping
Private Seller
DE
Seiko Marinemaster
Seiko Prospex Marine Master Professional 300M Diver Automatic...
$2,235
+ $38 for shipping
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4.88 (3,042)
JP
Seiko Marinemaster Steel 42.6mm
Seiko - Uomo - SLA055J1 - Prospex Limited Edition ‘Antarctic...
$3,990
Free shipping
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4.90 (507)
IT
Seiko Marinemaster 49mm
Seiko Auth SEIKO Prospex Marine Master Professional SBBN051...
$1,687
Free shipping
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4.80 (92)
JP
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marine Master Professional 300m Diver Automatic SBDX017
$3,004
+ $103 for shipping
Professional dealer
4.86 (212)
HK
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Seiko Marinemaster – the Diving Watch for Pros

Watches from the Seiko Marinemaster series meet the demands of professional divers. Top watches can even withstand the pressure at depths of 3000 m. The workmanship is of the highest quality and on par with Swiss luxury watches.


Highlights

  • Top models are water resistant to 1000 m (100 bar)
  • Robust diving watches suited to professional needs
  • Reliable, precise in-house caliber
  • Recognizable designs from the Seiko Marinemaster series

Seiko Marinemaster – made for extreme expeditions

Models from the Seiko Marinemaster line are expert diving watches that tick reliably even under extreme conditions. Top models from the series are water resistant to 1000 m (100 bar), making them ideal for the professional diver. In 2014, the Marinemaster Professional 1000m was even attached to the outside of an unmanned research submarine and reached depths of 3000 m without any problems.

Features of these watches include large cases, readable dials, brightly glowing hands and index markers, and a crown position at 4 o'clock. The Japanese manufacturer Seiko uses very precise quartz movements or robust automatic calibers such as the 8L35, which is particularly reliable and long lasting. The models of the Seiko Marinemaster series belong to the Prospex collection, which stands for "professional specifications" and includes numerous sports watches fit for professional use.


How much does a Seiko Marinemaster cost?

Model Reference number Price (approx.) Water Resistance
Marinemaster Professional 1000m Diver’s Hi-Beat Limited Edition (700 pieces) SBEX001 6,400 euros 1,000 m (100 bar)
Marinemaster Professional 600m Spring Drive SBDB011 4,200 euros 600 m (60 bar)
Marinemaster Professional 300m Limited Edition (1,000 pieces) SBDX012 3,500 euros 300 m (30 bar)
Marinemaster Professional 1000m SBDX013 3,400 euros 1,000 m (100 bar)
Marinemaster Professional 300m Limited Edition (200 pieces) SLA015 3,000 euros 300 m (30 bar)
Marinemaster Professional 300m SBDX001 2,700 euros 300 m (30 bar)
Marinemaster Professional 300m SBDX017 2,200 euros 300 m (30 bar)

Detailed Price Information

Prices for a mint condition Seiko Marinemaster range from about 1,000 euros for a quartz model to around 4,200 euros for a Marinemaster Professional 600m Spring Dive with a new, high-precision escapement system. For Seiko collectors and enthusiasts, the limited special editions are of particular interest. The Prospex Marinemaster 300m with the reference number SBDX012 is one such model and was limited to a run of 1,000 pieces. If you hope to find one of these watches in good condition, you should set aside about 3,500 euros.

Even harder to come by is the Marinemaster Professional 1000m Diver’s Hi-Beat Limited Edition , which was limited to 700 pieces and has the reference number SBEX001. What sets this titanium watch apart is the in-house movement 8L55 with its balance wheel that vibrates at a frequency of 36,000 alterations an hour (A/h). In contrast, the balance wheel of the caliber 8L35, which ticks in many other Marinemasters, vibrates at the more common frequency of 28,800 A/h. At the time of its release, the SBEX001 cost 6,400 euros. These two limited editions were introduced in 2015 in commemoration of the 50th anniversary of Seiko diving watches.


Seiko Marinemaster 300 vs. Seiko Sumo

The Seiko Marinemaster 300 serves as a good entry point into the Marinemaster series. In terms of appearance, this watch is reminiscent of the popular Seiko Sumo largely due to its 44-mm stainless steel case, diving bezel, and crown at 4 o'clock. The Sumo is also water resistant to 300 m (30 bar), but the two watches differ in their details. The caliber 6R15 ticks in the Sumo, whereas the Marinemaster 300 is powered by the higher-quality and more precise 8L35. The design of the numerals and minute markers on the unidirectional bezels of these watches also differs.

If you examine the cases closely, you'll notice that the backs of these watches are not the same. The Sumo has a conventional screw-down case back, whereas the Marinemaster 300 has a Monobloc case, which can only be opened from the front. This means that the inner mechanics of the watch can only be accessed if one removes the bezel, watch glass, and the dial and hands. The Japanese manufacturer uses its in-house Hardlex crystal in both models, which is more robust than conventional mineral glass, but not as hard as sapphire glass. The advantage of the Monobloc case is that helium molecules cannot infiltrate the watch, making it suitable for professional saturation diving. Both models bear the tsunami logo on their case backs, as is typical of Seiko diving watches, and have excellent finishing. The high quality satin-brushed and polished surfaces is on par with Swiss luxury watches.

You can buy a Seiko Marinemaster 300 with reference number SBDX001 in mint condition for about 2,700 euros. The model with reference number SBDX017 is easier to find and can be bought for around 2,200 euros. A Seiko Sumo with reference number SBDC031 is significantly more affordable, selling for around 450 euros.


To the ocean floor with the Seiko Marinemaster 1000m

If 300 m (30 bar) water resistance is not sufficient for you, you should take a closer look at the Marinemaster Professional 1000m. As its name suggests, this professional diving watch is water resistant to 1000 m (100 bar). In 2014, this model even held up at 3000 m underwater. This kind of resistance to pressure calls for a massive, robust case. Thus, the Marinemaster 1000m with reference number SBDX013 is 48 mm in diameter and 17 mm thick. This large case is reminiscent of a tuna can, which led to the watch's nickname "Tuna".

Even though this timepiece isn't exactly suited to everyday use, it enjoys immense popularity among Seiko fans. The model with reference number SBDX013 has a titanium case with black titanium carbide plating, making it even more durable. It fits on the wrist with a flexible silicon strap and keeps the time with the caliber 8L35, which has a power reserve of 50 hours and is also used in the MM 300. The daily deviation lies between +15 and -10 seconds and is thus not quite on the level of a Swiss chronometer. Seiko uses its proprietary luminescent material LumiBrite on the hands and index markers, making them easily legible in the dark.

For those who are less attracted to a black design, the Seiko Marinemaster Professional 1000m with reference number SBDX014 presents an appealing alternative. This model is identical in construction with the Ref. SBDX013, but distinguishes itself with red-gold elements. In contrast to the MM 300, the SBDX014 and SBDX013 models use sapphire glass to protect the display from outside influences. Sapphire glass is indeed significantly harder and more scratch resistant than Hardlex crystal, but does crack more quickly. Both Marinemaster 1000m models cost about 3,400 euros new.