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Seiko Marinemaster

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Seiko Marinemaster 52.4mm Brown United States of America, Missouri, Chesterfield
Seiko Prospex Marinemaster Pro 1000m Cermet & Gold Ocean LTD 47MM
$3,480
Verified Dealer
85
US
Seiko Marinemaster Titanium United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster
$6,825
Verified Dealer
356
US
Seiko Marinemaster Steel 39.9mm Black United States of America, Illinois, Elmhurst
Seiko Prospex Diver SLA017
$6,200
Private Seller
 
US
Seiko Marinemaster Steel Black No numerals United States of America, Oregon, USA
Seiko MARINE MASTER PROFESSIONAL 300M SBDX023 / SLA021 JAPAN...
$2,900
Free shipping
Verified Dealer
US
Seiko Marinemaster Titanium Black No numerals
Seiko Marinemaster
$2,347
Verified Dealer
33
JP
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster
$2,655
Verified Dealer
17
PL
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster 300 sbdx017 "New"
$3,228
Verified Dealer
362
ES
Seiko Marinemaster Steel 44,3mm Black No numerals
Seiko Prospex Marinemaster 300m Black Full Set
$2,594
Verified Dealer
329
ES
Seiko Marinemaster Titanium 46mm Black No numerals
Seiko Prospex Marinemaster Professional Spring Drive SBDB001
$3,283
Verified Dealer
925
DE
Seiko Marinemaster Steel
Seiko Prospex Marine Master SBDX017 Professional 8L35-00K0 300M
$2,443
Free shipping
Verified Dealer
112
JP
Seiko Marinemaster Steel 40mm United States of America, Florida, Venice
Seiko Prospex sla017
$6,000
Private Seller
 
US
Seiko Marinemaster Steel United States of America, Texas, HOUSTON
Seiko Marinemaster Seiko Marinemaster 300M "Ninja Tuna" +...
$850
Private Seller
 
US
Seiko Marinemaster United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster
$3,175
Verified Dealer
356
US
Seiko Marinemaster Titanium 53.5mm Black No numerals
Seiko Prospex Marine Master SBDX014
$2,455
Private Seller
 
CA
Seiko Marinemaster Steel 40mm Black
Seiko Divers
$1,810
Verified Dealer
50
JP
Seiko Marinemaster Titanium
Seiko Prospex Marine Master Diving Computer NX SBDK001 (NEW,...
$1,287
Verified Dealer
81
JP
Seiko Marinemaster Steel 44mm Black
Seiko Prospex Marinemaster
$2,933
Verified Dealer
372
DE
Seiko Marinemaster Steel 44mm Black No numerals
TOP
Seiko Marinemaster MM300 (SBDX003/SLA025 look) w/gilt & patina...
$3,963
Private Seller
 
IE
Seiko Marinemaster Steel 43mm Black No numerals
Seiko Marinemaster SBDX001 Prospex 8L35-0010
$2,717
Verified Dealer
925
DE
Seiko Marinemaster Titanium
Seiko Prospex Marine Master SBBN027 Professional 1000M Quartz
$1,513
Free shipping
Verified Dealer
112
JP
Seiko Marinemaster Steel 44.3mm Black No numerals
Seiko Prospex Marinemaster Professional
$3,075
Verified Dealer
1309
ES
Seiko Marinemaster Titanium United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster Spring Drive GMT 600m
$3,650
Verified Dealer
356
US
Seiko Marinemaster Steel No numerals
Seiko International Edition Prospex 1000m Tuna Auto SBDX013
$3,499
Free shipping
Verified Dealer
33
SG
Seiko Marinemaster Steel 48mm Black
Seiko Star
$931
Verified Dealer
50
JP
Seiko Marinemaster Steel 48mm
Seiko Marinemaster 300 Tuna SBBN031 Diashield
$1,924
Verified Dealer
225
DE
Seiko Marinemaster Steel 44,5mm
Seiko Marinemaster SLA021J1 Limited Edition 1968
$3,285
Free shipping
Verified Dealer
251
PL
Seiko Marinemaster Steel 39.9mm Black
Seiko Prospex Diver 62MAS Reissue Limited Edition SBDX019 SLA017
$5,000
Private Seller
 
AU
Seiko Marinemaster Steel 48mm Black No numerals
Seiko Marinemaster Tuna SBBN017
$1,131
Verified Dealer
925
DE
Seiko Marinemaster Ceramic 48mm Black
Seiko Marine Master Automatic Professional "Emperor Tuna" -...
$4,757
Free shipping
Verified Dealer
170
CH
Seiko Marinemaster Steel 42mm Black
Seiko Marinemaster 8L35, Box&Papers
$2,707
Verified Dealer
433
ES
Seiko Marinemaster Titanium United States of America, Pennsylvania, Philadelphia
Seiko Prospex MarineMaster GPS
$2,785
Verified Dealer
356
US
Seiko Marinemaster Steel No numerals
Seiko Japan Edition Prospex 1000m Tuna Auto SBDX014
$3,499
Free shipping
Verified Dealer
33
SG
Seiko Marinemaster Steel 44.8mm Green No numerals
Seiko Limited Edition 1968 High Beat Marinemaster SLA025J1
$5,999
Verified Dealer
PH
Seiko Marinemaster Titanium
Seiko Marinemaster
$2,820
Free shipping
Verified Dealer
108
SK
Seiko Marinemaster 52mm Black
Seiko SBDX014 【メンズ】
$2,280
Verified Dealer
10
JP
Seiko Marinemaster Titanium 53.5mm Black No numerals
Seiko Prospex Marine Master SBDX014 (New)
$3,800
Private Seller
 
HK
Seiko Marinemaster Steel 48mm Black No numerals
Seiko Marinemaster Prospex Tuna SBBN015
$1,585
Verified Dealer
925
DE
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster
$3,624
Private Seller
 
FR
Seiko Marinemaster Titanium 50mm
Seiko Marinemaster SBDB009 Spring Drive Tuna
$3,171
Private Seller
 
SE
Seiko Marinemaster Steel 44,2mm Black No numerals
Seiko Marinemaster
$2,690
Private Seller
 
NL
Seiko Marinemaster Steel 44mm Black No numerals
Seiko MARINEMASTER SBDX017 MM 300
$2,531
Private Seller
 
IT
Seiko Marinemaster Titanium 52mm
Seiko Marinemaster
$2,378
Private Seller
 
GR
Seiko Marinemaster Steel Black No numerals
Seiko Marinemaster MM300
$2,321
Private Seller
 
HU
Seiko Marinemaster Steel 44mm Black No numerals
Seiko Marinemaster
$2,039
Private Seller
 
NL
Seiko Marinemaster Titanium 49,5mm
Seiko prospex marine master 1000m limited edition S23626J1...
$2,033
Private Seller
 
NL
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster
$3,100
Verified Dealer
356
US
Seiko Marinemaster Ceramic 49.4mm
Seiko Marine Master Prospex Quartz Diver's Limited 1978 - SBBN040
$3,738
Free shipping
Verified Dealer
170
CH
Seiko Marinemaster Steel No numerals
Seiko Japan Edition Prospex Marine Master 300m SBBN035
$1,399
Free shipping
Verified Dealer
33
SG
Seiko Marinemaster Steel 44mm Blue No numerals
Seiko Limited Edition 1968 Zimbe Navy Blue Marinemaster SLA027J1
$4,789
Verified Dealer
PH
Seiko Marinemaster Steel
Seiko Prospex SLA017 1530/2000 Full Set
$5,006
Private Seller
 
AE
Seiko Marinemaster Steel Black
Seiko Prospex Sbbn031 Watch
$1,176
Verified Dealer
585
NL
Seiko Marinemaster United States of America, Pennsylvania, Philadelphia
Seiko Marine Master Professional SBBN027 - SBBN027
$2,100
Verified Dealer
356
US
Seiko Marinemaster Steel No numerals
Seiko Japan Edition Prospex Marine Master 300m SBBN033
$1,299
Free shipping
Verified Dealer
33
SG
Seiko Marinemaster Steel United States of America, Pennsylvania, Philadelphia
Seiko Prospex 200m Great Blue Hole Baby Marine Master
$1,150
Free shipping
Verified Dealer
356
US
Seiko Marinemaster United States of America, Pennsylvania, Philadelphia
Seiko Marinemaster
$2,695
Verified Dealer
356
US
Seiko Marinemaster Steel Black
Seiko Prospex Sbbn033 Watch
$1,027
Verified Dealer
585
NL
Seiko Marinemaster 47.7mm
Seiko MarineMaster Professional 300M Diver Quartz SBBN035
$1,052
Private Seller
 
UK

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.