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Seiko Marinemaster

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Seiko Marinemaster Steel 48mm
Seiko Marinemaster 300 Tuna SBBN031 Diashield
$1,785
Verified Dealer
303
DE
Seiko Marinemaster Steel 44.3mm Blue No numerals United States of America, Georgia, Atlanta
TOP
Seiko Prospex SLA023J/SBDX025 - Marinemaster - Blue Dial - New
$2,800
Free shipping
Verified Dealer
34
US
Seiko Marinemaster Steel 43mm Black No numerals United States of America, New Jersey, Rahway
Seiko Marinemaster MM300 SBDX001 (RARE)
$3,975
Verified Dealer
9
US
Seiko Marinemaster Titanium United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster
$6,825
Verified Dealer
618
US
Seiko Marinemaster Titanium 48mm Blue United States of America, California, Huntington Beach
Seiko Hi-beat Marinemaster Pro Sbex005 Titanium
$4,883
Verified Dealer
205
US
Seiko Marinemaster Steel Black No numerals United States of America, Washington, USA
Seiko MARINE MASTER PROFESSIONAL 300M SBDX023 / SLA021 JAPAN...
$2,700
Free shipping
Verified Dealer
58
US
Seiko Marinemaster
Seiko Prospex Sea Marine Master SBBN025 - SBBN025
$1,759
Verified Dealer
169
HK
Seiko Marinemaster Steel Black No numerals United States of America, Florida, Orlando
Seiko Marinemaster
$3,875
Verified Dealer
36
US
Seiko Marinemaster Steel Blue
Seiko prospex sla023j1 Bleu marine master 300 m
$3,089
Private Seller
 
BE
Seiko Marinemaster Titanium 44mm Black United States of America, Washington, Bellevue
Seiko Prospex Marine Master Spring Drive Professional Titanium...
$3,400
Verified Dealer
106
US
Seiko Marinemaster Steel 44.3mm Black No numerals United States of America, Georgia, Atlanta
TOP
Seiko Prospex SLA021J/SBDX023 - Marinemaster - Black Dial - New
$2,750
Free shipping
Verified Dealer
34
US
Seiko Marinemaster Titanium Blue
Seiko Prospex GPS Solar Limited Edition SSF001J1
$3,097
Verified Dealer
158
PL
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Prospex 200m Great Blue Hole Baby Marine Master
$1,150
Free shipping
Verified Dealer
618
US
Seiko Marinemaster Titanium 49.4mm Black
Seiko Prospex Marine Master Professional SBBN025
$1,582
Verified Dealer
 
JP
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
Verified Dealer
58
US
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster
$2,652
Verified Dealer
40
PL
Seiko Marinemaster Titanium
Seiko Prospex MarineMaster Professional 600 5R66-0BC0 Spring...
$3,251
Free shipping
Verified Dealer
211
JP
Seiko Marinemaster Steel 44.3mm Blue No numerals
Seiko prospex marine master 300m bleu sla032j1
$2,924
Private Seller
 
BE
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster
$3,971
Private Seller
 
DE
Seiko Marinemaster Steel 43mm Black United States of America, Washington, Bellevue
Seiko Prospex Padi Diver 200m Automatic Baby Marine Master...
$1,000
Verified Dealer
106
US
Seiko Marinemaster Steel Green No numerals
Seiko Marinemaster Green Limited Edition SLA019
$3,613
Verified Dealer
158
PL
Seiko Marinemaster Titanium United States of America, Pennsylvania, Philadelphia
Seiko Prospex MarineMaster GPS
$2,785
Verified Dealer
618
US
Seiko Marinemaster Ceramic 48mm Black
Seiko Marine Master Automatic Professional "Emperor Tuna" -...
$4,082
Verified Dealer
44
MC
Seiko Marinemaster Steel 48mm Black No numerals
Seiko Marinemaster
$1,076
Verified Dealer
76
NL
Seiko Marinemaster Steel 44.3mm Black No numerals
Seiko Marinemaster
$2,974
Verified Dealer
49
JP
Seiko Marinemaster Steel
Seiko Prospex Marine Master Professional SBEX007 8L55-00D0
$5,558
Free shipping
Verified Dealer
211
JP
Seiko Marinemaster Titanium 49,4mm Black No numerals
Seiko 1000M Prospex Marinemaster SBBN029 Tuna
$1,644
Verified Dealer
NL
Seiko Marinemaster
Seiko Tuna Marinemaster 300
$1,214
Private Seller
 
HU
Seiko Marinemaster Steel 44mm Black United States of America, Washington, Bellevue
Seiko Marinemaster Prospex Professional 300m Automatic Sla021j...
$2,650
Verified Dealer
106
US
Seiko Marinemaster Titanium 50.7mm
Seiko Marine
$2,147
Free shipping
Verified Dealer
JP
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster
$3,100
Verified Dealer
618
US
Seiko Marinemaster Ceramic 49.4mm
Seiko Marine Master Prospex Quartz Diver's Limited 1978 Pcs. -...
$3,089
Verified Dealer
44
MC
Seiko Marinemaster Steel 44mm Black No numerals
Seiko 2017 Top Condition Marinemaster Prospex 300m Diver...
$2,918
Verified Dealer
481
ES
Seiko Marinemaster
Seiko SLA017 reissue 62MAS
$6,068
Private Seller
 
DE
Seiko Marinemaster Titanium
Seiko Prospex Marine Master SBDB008 5R65 100th anniversary
$4,629
Free shipping
Verified Dealer
211
JP
Seiko Marinemaster Titanium Black
Seiko Marinemaster
$2,206
Verified Dealer
 
JP
Seiko Marinemaster Titanium 48mm Black
Seiko Marinemaster limited edition Automatic Professional 1000...
$6,608
Verified Dealer
791
LI
Seiko Marinemaster Steel 44,5mm
Seiko Marinemaster SLA021J1 Special Edition 1968
$2,979
Free shipping
Verified Dealer
324
PL
Seiko Marinemaster Steel 44,3mm Black No numerals
Seiko Prospex Marinemaster SLA021J1
$2,978
Verified Dealer
91
FR
Seiko Marinemaster Titanium Black
Seiko Professional Marinemaster 600 Spring Drive
$3,751
Private Seller
 
HU
Seiko Marinemaster Steel 39.9mm Black
Seiko SLA017 (62MAS) - Warranty April 2020 - Rare German set
$5,489
Private Seller
 
NL
Seiko Marinemaster Steel 44mm Black
Seiko Prospex SBDC061 (SPB077J1)Baby Marine Master MM200,...
$1,057
Private Seller
 
UK
Seiko Marinemaster Steel 44mm
Seiko Marinemaster MM300
$2,545
Private Seller
 
CH
Seiko Marinemaster United States of America, Pennsylvania, Philadelphia
Seiko Marine Master Professional SBBN027 - SBBN027
$2,100
Verified Dealer
618
US
Seiko Marinemaster Steel Black
Seiko Marinemaster
$938
Private Seller
 
IT
Seiko Marinemaster Titanium
Seiko Marinemaster Prospex Professional 1000m 8L35-00H0 Automatic
$2,305
Free shipping
Verified Dealer
211
JP
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Prospex Marinemaster 300 Professional
$2,890
Verified Dealer
97
BG
Seiko Marinemaster Steel 47mm Black No numerals
Seiko Marinemaster
$1,462
Private Seller
 
UK
Seiko Marinemaster Steel Black
Seiko Prospex Marine Master Professional SBBN033
$1,004
Verified Dealer
 
JP
Seiko Marinemaster Steel 44mm Blue No numerals
Seiko Prospex Marinemaster Diver Ceramic Bezel SLA023J1
$3,310
Free shipping
Verified Dealer
324
PL
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster 300 SBDX001
$2,304
Private Seller
 
CZ
Seiko Marinemaster Titanium 42mm Black
Seiko Marinemaster
$2,979
Private Seller
 
FR
Seiko Marinemaster Titanium 48mm Blue No numerals
Seiko Marinemaster
$2,427
Private Seller
 
DE
Seiko Marinemaster United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster
$3,175
Verified Dealer
618
US
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster
$2,868
Private Seller
 
NL
Seiko Marinemaster Titanium
Seiko Marine Master Ocean Cruiser SBED003 8X53-0AL0-2 GPS Solar
$1,376
Free shipping
Verified Dealer
211
JP
Seiko Marinemaster Titanium 48mm Black
Seiko Marinemaster
$6,068
Private Seller
 
NL
Seiko Marinemaster Steel Black No numerals
Seiko Marinemaster limited edition zimbe MM300
$4,402
Private Seller
 
FR
Seiko Marinemaster Steel 44mm
Seiko Prospex Marinemaster Professional Diver 300m
$3,013
Verified Dealer
104
CH
Seiko Marinemaster Titanium 49mm Black
Seiko Marinemaster
$1,203
Private Seller
 
IT
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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.