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Seiko Marinemaster

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Seiko Marinemaster

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Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Prospex 200m Great Blue Hole Baby Marine Master
$1,150
Professional dealer
1256
US
Seiko Marinemaster 40mm United States of America, New Jersey, kinnelon
Seiko Prospex Limited Edition Diver
$5,200
Private Seller
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
1334
US
Seiko Marinemaster Steel 39.9mm Black United States of America, Georgia, Atlanta
Seiko Prospex Diver SLA017 NEW w/Box & Card Limited Edition of...
$6,499
Professional dealer
155
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
803
US
Seiko Marinemaster Steel 47.7mm Black United States of America, California, San Mateo
TOP
Seiko Marine Master Professional 300M Diver Quartz SBBN033 -...
$1,139
Free shipping
Professional dealer
3687
US
Seiko Marinemaster Steel 44mm Blue United States of America, Florida, Hallandale Beach
Seiko Prospex Marine Master Professional Blue Dial
$3,049
Professional dealer
212
US
Seiko Marinemaster Steel 43mm Black No numerals United States of America, New Jersey, Rahway
Seiko Marinemaster MM300 SBDX001 (RARE)
$3,975
Professional dealer
16
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
206
US
Seiko Marinemaster United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster 1000m Tuna SBDX013
$2,695
Professional dealer
1256
US
Seiko Marinemaster Steel 39.9mm Black United States of America, Illinois, Elmhurst
Seiko Prospex diver 62MAS Reissue
$5,000
Private Seller
 
US
Seiko Marinemaster Titanium Black United States of America, Florida, Orlando
Seiko Prospex Marine Master 1978 Quartz Divers
$2,875
Professional dealer
179
US
Seiko Marinemaster Titanium 52mm Brown No numerals
TOP
Seiko Marinemaster SBDX016 8L35-00J0
$2,281
Free shipping
Professional dealer
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
181
US
Seiko Marinemaster Steel 47.70mm Black United States of America, California, San Mateo
Seiko Prospex Divers Marinemaster 300 Ninja Tuna - SBBN035
$1,169
Free shipping
Professional dealer
3687
US
Seiko Marinemaster Steel 48mm Black United States of America, Florida
Seiko Prospex Marine Master SBBN031
$1,200
Professional dealer
163
US
Seiko Marinemaster Titanium 52.4mm Black No numerals
Seiko Marinemaster Japan edition Tuna Prospex
$2,866
Professional dealer
78
IT
Seiko Marinemaster Steel 44.3mm Blue No numerals
Seiko Prospex Marinemaster, Ref. SLA023J, S/S, Box, Papiere
$3,602
Professional dealer
78
DE
Seiko Marinemaster Steel 47.7mm Black No numerals
Seiko Marinemaster Professional
$879
Private Seller
 
CA
Seiko Marinemaster Steel 44.3mm Black No numerals United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster SLA021 300m
$2,875
Professional dealer
1256
US
Seiko Marinemaster Steel 44mm
Seiko Prospex Marinemaster Professional Diver 300m
$3,355
Professional dealer
174
CH
Seiko Marinemaster Titanium 44.8mm Black
Seiko Prospex LX Marinemaster SBDB027 / SNR029 NEW
$5,283
Professional dealer
386
JP
Seiko Marinemaster Steel 47.7mm
Seiko Prospex Marine Master Professional 300m SBBN035 7C46-0AG...
$877
Free shipping
Professional dealer
496
JP
Seiko Marinemaster Steel 44.3mm Blue United States of America, California, Burlingame
Seiko Prospex Marine Master Professional 300M Diver Automatic...
$3,239
Free shipping
Professional dealer
3687
US
Seiko Marinemaster Titanium 48mm Black United States of America, Florida
Seiko Prospex Marine Master 1000M Tuna Can Automatic SBDX014
$2,450
Professional dealer
163
US
Seiko Marinemaster Steel Black
Seiko Prospex SLA017
$6,590
Professional dealer
132
PL
Seiko Marinemaster Ceramic 48mm Black
Seiko Marine Master Automatic Professional "Emperor Tuna" -...
$4,237
Professional dealer
103
MC
Seiko Marinemaster Steel 44mm Blue No numerals
Seiko Marinemaster SLA023J1
$3,165
Private Seller
DE
Seiko Marinemaster United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster SBDX014
$2,450
Professional dealer
1256
US
Seiko Marinemaster Steel 44.3mm
Seiko Marine Master Professional SBDX023
$3,429
Professional dealer
81
UK
Seiko Marinemaster Steel 44mm Blue
Seiko Marinemaster 300M Prospex SLA015J1 Limited Edition...
$6,728
Professional dealer
86
DE
Seiko Marinemaster Titanium 48.2mm
Seiko Prospex Marine Master 50th anniversary of the birth of...
$4,918
Free shipping
Professional dealer
496
JP
Seiko Marinemaster Titanium 46mm Black United States of America, California, San Mateo
Seiko Prospex Marine Master Professional SBDB011 - SBDB011
$3,699
Free shipping
Professional dealer
3687
US
Seiko Marinemaster Steel 44mm Black No numerals
Seiko MarineMaster MM300 SBDX001 44mm (Used | Complete Set)
$2,104
Professional dealer
MY
Seiko Marinemaster Steel 44.3mm Black No numerals
Seiko Marinemaster
$2,380
Professional dealer
30
HK
Seiko Marinemaster Ceramic 49.4mm Black
Seiko Marine Master Prospex Quartz Diver's Limited 1978 Pcs. -...
$3,240
Professional dealer
103
MC
Seiko Marinemaster Steel 46mm Black No numerals
Seiko Marinemaster Tuna
$1,433
Private Seller
 
SK
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Prospex MarineMaster SBEC001
$2,225
Professional dealer
1256
US
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster 300M SBDX001 8L35-0010 (2013)
$3,552
Professional dealer
5
NL
Seiko Marinemaster Steel 44,3mm Black
Seiko Marinemaster Prospex SLA035J1 300M black LTD 600 St.
$3,975
Professional dealer
86
DE
Seiko Marinemaster Titanium 52.4mm
Seiko Marinemaster Prospex Mobile Suit Gundam 40th Anniversary...
$3,308
Free shipping
Professional dealer
496
JP
Seiko Marinemaster 52.4mm Black United States of America, California, San Mateo
Seiko Marine Master Professional SBDX014 - SBDX014
$2,919
Free shipping
Professional dealer
3687
US
Seiko Marinemaster Steel 42mm Blue
Seiko Marine Master Diver 1968 - Automatic - SPB187J1 -...
$1,246
Professional dealer
218
IT
Seiko Marinemaster Steel 44mm Green No numerals
Seiko Prospex Marinemaster 300 Deep Forest Limited Edition FULL
$4,355
Professional dealer
646
ES
Seiko Marinemaster Titanium 48,2mm Black No numerals
Seiko Prospex Marinemaster 1000m Hi-Beat SBEX001 Titanium Limited
$6,230
Professional dealer
2127
DE
Seiko Marinemaster Steel 44mm No numerals
Seiko Marinemaster
$43,617
Private Seller
 
ES
Seiko Marinemaster Steel Black United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster 300M SLA025
$7,500
Professional dealer
1256
US
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster SBDX017 BOX/PAPERS
$3,020
Professional dealer
PL
Seiko Marinemaster Titanium 48mm Black No numerals
Seiko MarineMaster MM1000 SBDX014 Emperor Tuna 48mm (Used |...
$2,104
Professional dealer
 
MY
Seiko Marinemaster Steel 44.7mm
Seiko Prospex Marine Master Professional 300m SBBN035 7C46-0AG...
$926
Free shipping
Professional dealer
496
JP
Seiko Marinemaster 44.3mm United States of America, California, San Mateo
Seiko Marine Master Professional 300M - SBDX023
$2,999
Free shipping
Professional dealer
3687
US
Seiko Marinemaster Steel Black
Seiko Marine Master Diver 1968 - Automatic - SPB185J1 -
$1,246
Professional dealer
218
IT
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Prospex Marinemaster SBDX017 FULL SET
$3,732
Professional dealer
646
ES
Seiko Marinemaster Steel 44mm Blue No numerals
Seiko Prospex Diver's Marinemaster SLA023J1
$3,239
Professional dealer
2127
DE
Seiko Marinemaster Steel 47,7mm Black
Seiko Marinemaster
$1,246
Private Seller
 
IT
Seiko Marinemaster Titanium United States of America, Pennsylvania, Philadelphia
Seiko Prospex MarineMaster GPS
$2,900
Professional dealer
1256
US
Seiko Marinemaster Titanium 48mm
Seiko Prospex SBEX001, Strichindizes, 2016, Gut, Gehäuse...
$6,854
Professional dealer
1245
DE
Seiko Marinemaster Steel 47.7mm Black No numerals
Seiko MarineMaster 300M Ninja Tuna SBBN035 48mm Quartz (Used |...
$836
Professional dealer
 
MY
Seiko Marinemaster Steel 44.7mm
Seiko Prospex Marine Master Professional 300m SBBN035 7C46-0AG...
$887
Free shipping
Professional dealer
496
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
3687
US
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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.


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