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Seiko Marinemaster


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Seiko Marinemaster Titanium Black United States of America, Texas, Austin
Seiko : Marine Master Dark Emperor Tuna : SBDX013 :
$2,325
Professional dealer
767
US
Seiko Marinemaster Steel 39.9mm Black No numerals United States of America, Pennsylvania, Bala Cynwyd
Seiko Prospex Diver Limited Edition SLA017
$5,950
Free shipping
Professional dealer
1465
US
Seiko Marinemaster Steel 43mm Black No numerals United States of America, New Jersey, Rahway
Seiko Marinemaster MM300 SBDX001 (RARE)
$3,975
Professional dealer
18
US
Seiko Marinemaster Steel 47.70mm Black United States of America, California, San Mateo
Seiko Prospex Divers Marinemaster 300 Ninja Tuna - SBBN035
$1,149
Free shipping
Professional dealer
4175
US
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Prospex 200m Great Blue Hole Baby Marine Master
$1,150
Professional dealer
1447
US
Seiko Marinemaster Titanium 52mm United States of America, Florida, Hallandale Beach
Seiko Prospex Marinemaster 1000M 'Tuna'
$2,999
Professional dealer
235
US
Seiko Marinemaster Steel 43.3mm Black United States of America, New York, New Windsor
Seiko Marinemaster SBDX023 - Caliber 8L35
$2,300
Private Seller
US
Seiko Marinemaster Titanium 48.5mm Blue No numerals United States of America, Florida, Hollywood
Seiko Marinemaster GPS Prospex 48.5MM Ref#SSF001
$2,885
Professional dealer
834
US
Seiko Marinemaster Titanium 49.4mm Black No numerals United States of America, New York, NY
Seiko Prospex Marine Master Diver Watch SBBN025
$2,210
Professional dealer
319
US
Seiko Marinemaster Titanium 52mm Brown No numerals
TOP
Seiko Marinemaster SBDX016 8L35-00J0
$2,558
Free shipping
Professional dealer
262
JP
Seiko Marinemaster Steel 43mm Black United States of America, Florida, Pompano Beach
Seiko Original MarineMaster SBDX001 JDM 300m Diver AUTOMATIC...
$3,995
Professional dealer
206
US
Seiko Marinemaster Steel Black No numerals United States of America, New Jersey, USA
Seiko MARINE MASTER PROFESSIONAL 300M SBDX023 / SLA021 JAPAN...
$2,800
Free shipping
Professional dealer
241
US
Seiko Marinemaster Titanium 49.4mm United States of America, California, San Mateo
Seiko Prospex Sea Marine Master SBBN025 - SBBN025
$2,049
Free shipping
Professional dealer
4175
US
Seiko Marinemaster Steel 44.3mm Black No numerals United States of America, Pennsylvania, Philadelphia
Seiko Prospex Marinemaster SLA021 300m
$2,875
Professional dealer
1447
US
Seiko Marinemaster Black United States of America, Florida, Orlando
Seiko Prospex Marine Master Diver Professional Limited Edition
$2,575
Professional dealer
243
US
Seiko Marinemaster Steel 39.9mm Grey United States of America, California, PASADENA
Seiko SLA017 Limited Edition 62MAS
$4,550
Private Seller
 
US
Seiko Marinemaster Steel 48mm Black United States of America, Florida
Seiko Prospex Marine Master SBBN031
$1,200
Professional dealer
184
US
Seiko Marinemaster Steel 44.3mm Blue No numerals
Seiko Prospex Marinemaster, Ref. SLA023J1, S/S, Box, Papiere
$3,198
Professional dealer
81
DE
Seiko Marinemaster Steel Black
Seiko Prospex Diver's Watch SLA017J1 (Limited Edition)
$5,331
Professional dealer
95
UK
Seiko Marinemaster Steel 47.6mm Black United States of America, Colorado, Denver
Seiko Marinemaster
$1,350
Private Seller
 
US
Seiko Marinemaster Titanium 50mm Black United States of America, Florida, Pompano Beach
Seiko Prospex MarineMaster Professional Yellow Tuna SBBN027...
$2,195
Professional dealer
206
US
Seiko Marinemaster Steel 47.7mm Black United States of America, California, San Mateo
Seiko Marine Master Professional 300M Tuna SBBN031 - SBBN031
$1,489
Free shipping
Professional dealer
4175
US
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Prospex MarineMaster SBEC001
$2,225
Professional dealer
1447
US
Seiko Marinemaster Steel Black No numerals United States of America, Washington, USA
Seiko MARINE MASTER PROFESSIONAL 300M SBDX023 / SLA021 JAPAN...
$3,266
Free shipping
Professional dealer
241
US
Seiko Marinemaster Steel 44.5mm Blue No numerals United States of America, Texas, San Antonio
Seiko Marinemaster
$2,598
Private Seller
 
US
Seiko Marinemaster Steel Black United States of America, North Carolina, sneads ferry
Seiko Marinemaster
$750
Private Seller
 
US
Seiko Marinemaster Steel 40mm Black United States of America, Massachusetts, East Longmeadow
Seiko Marinemaster SLA017
$5,200
Private Seller
 
US
Seiko Marinemaster Titanium 49.4mm Black United States of America, Florida, Orlando
Seiko Prospex Marine Master Diver Professional Limited Edition
$2,575
Professional dealer
243
US
Seiko Marinemaster Steel 44.3mm Black No numerals United States of America, Texas, Houston
Seiko Marinemaster
$2,350
Private Seller
 
US
Seiko Marinemaster Titanium 48mm Black United States of America, Florida
Seiko Prospex Marine Master 1000M Tuna Can Automatic SBDX014
$2,900
Professional dealer
184
US
Seiko Marinemaster Steel 47.7mm Black United States of America, California, San Mateo
Seiko Marine Master Professional 300M Diver Quartz SBBN033 -...
$1,139
Free shipping
Professional dealer
4175
US
Seiko Marinemaster Steel Black United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster 300M SLA025
$7,500
Professional dealer
1447
US
Seiko Marinemaster Titanium 44.8mm Black
Seiko Prospex LX Marinemaster Ref. SBDB027 / SNR029 NEW
$5,496
Professional dealer
605
JP
Seiko Marinemaster Steel 47.7mm
Seiko Prospex Marine Master Professional 300m SBBN035 7C46-0AG...
$851
Free shipping
Professional dealer
588
JP
Seiko Marinemaster Steel Blue No numerals
Seiko Marinemaster SLA023
$2,622
Private Seller
 
CA
Seiko Marinemaster Steel Black
Seiko Marinemaster
$5,736
Private Seller
 
CA
Seiko Marinemaster Steel Blue No numerals
Seiko Marinemaster 200 'Blue Hole' Limited Edition Japan-made
$983
Private Seller
 
CA
Seiko Marinemaster Steel 44.3mm Black No numerals
Seiko Marinemaster
$3,032
Private Seller
 
CA
Seiko Marinemaster Steel 39.9mm Black
Seiko Prospex Diver Limited Edition SLA017
$5,572
Private Seller
 
CA
Seiko Marinemaster Steel 44.3mm Blue United States of America, California, Burlingame
Seiko Prospex Marine Master Professional 300M Diver Automatic...
$3,399
Free shipping
Professional dealer
4175
US
Seiko Marinemaster Titanium Black United States of America, Pennsylvania, Philadelphia
Seiko Marine Master Professional SBBN027 Quartz Tuna Can
$2,100
Professional dealer
1447
US
Seiko Marinemaster Steel 44.3mm Green
Seiko PROSPEX DIVER SCUBA MARINE MASTER 140TH ANNIVERSARY...
$3,250
Professional dealer
605
JP
Seiko Marinemaster Titanium 52.4mm Black No numerals
Seiko Marinemaster Japan edition Tuna Prospex
$2,840
Professional dealer
84
IT
Seiko Marinemaster Titanium 48.2mm
Seiko Prospex Marine Master 50th anniversary of the birth of...
$4,719
Free shipping
Professional dealer
588
JP
Seiko Marinemaster Steel 44mm Green No numerals
TOP
Seiko Marinemaster SBDX021 (SLA019J1) Limited to 1968pcs ...
$3,673
Private Seller
 
FR
Seiko Marinemaster 52.4mm Black
Seiko Marine Master Professional SBDX013 - SBDX013
$3,772
Professional dealer
825
DK
Seiko Marinemaster Steel 44mm Blue No numerals
Seiko Prospex Diver's Marinemaster SLA023J1
$3,086
Professional dealer
2391
DE
Seiko Marinemaster Steel 47.7mm Black No numerals
Seiko セイコー プロスペックス マリーンマスター プロフェッショナル クオーツ 時計 メンズ 腕時計 SBBN031
$1,166
Professional dealer
 
JP
Seiko Marinemaster Black United States of America, California, San Mateo
Seiko Prospex Marine Master Professional 1978 Quartz Divers -...
$2,429
Free shipping
Professional dealer
4175
US
Seiko Marinemaster Titanium United States of America, Pennsylvania, Philadelphia
Seiko Prospex MarineMaster GPS
$2,900
Professional dealer
1447
US
Seiko Marinemaster Titanium Black
Seiko Prospex Marinemaster 600 M Tuna
$4,833
Professional dealer
292
UK
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Prospex Marinemaster SBDX017 FULL SET
$3,204
Professional dealer
706
ES
Seiko Marinemaster Titanium 49.4mm
Seiko Prospex Marine Master 1978 Quartz Divers 40th Anniversar...
$2,367
Free shipping
Professional dealer
588
JP
Seiko Marinemaster Steel 40mm Black No numerals
Seiko Marinemaster Mod in Heimdallr case
$350
Private Seller
UA
Seiko Marinemaster Steel 44.3mm Blue
Seiko Prospex Marine Master Professional 300M Diver Automatic...
$3,892
Professional dealer
825
DK
Seiko Marinemaster Steel 50mm Blue No numerals
Seiko Prospex SEA Marinemaster Tuna SRP653
$1,233
Professional dealer
2391
DE
Seiko Marinemaster Steel 47.7mm Black
Seiko Prospex セイコー プロスペックス マリーンマスター プロフェッショナル クォーツ 時計 メンズ 腕時計...
$1,420
Professional dealer
 
JP
Seiko Marinemaster 52.4mm Black United States of America, California, San Mateo
Seiko Marine Master Professional SBDX013 - SBDX013
$2,999
Free shipping
Professional dealer
4175
US
Seiko Marinemaster Steel Blue No numerals United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster 300m SLA023
$3,300
Professional dealer
1447
US
Seiko Marinemaster Steel 44.8mm Black No numerals
Seiko PROSPEX MARINEMASTER 1968 Hi-Beat Ref-SLA025 Cal-8L55...
$7,272
Professional dealer
470
DE
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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.