Side by side
Fortis Marinemaster M-40vsGrand Seiko STGK003
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
Marinemaster M-4040mm
STGK00328.7mm
Power Reserve
Marinemaster M-4038h
STGK00350h
Water Resistance
Marinemaster M-40300m
STGK003100m
MSRP
Marinemaster M-40$3,520
STGK003$31,200
Full specifications
Case
7 specsCategory
Diver
Dress
Diameter
40mm
28.7mm
Thickness
13mm
10.9mm
Lug-to-Lug
—
35.1mm
Lug Width
21mm
14mm
Material
Stainless Steel
Gold
Water Resistance
300m
100m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Dial Color
Orange
Black
Movement
3 specsCaliber
Sellita SW220-1
9S27
Power Reserve
38h
50h
Jewels
26
25
Pricing
1 specsMSRP
$3,520
$31,200
Follow this matchup
Get a note when Fortis Marinemaster M-40 vs Grand Seiko STGK003 gets more votes, a community discussion, or a price drop. No account needed.
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Marathon Arctic OSAR 41mm AutomaticvsGrand Seiko STGK003Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsGrand Seiko STGK003Marathon Arctic OSAR 36mm AutomaticvsGrand Seiko STGK003Bremont S302vsGrand Seiko STGK003Fortis Marinemaster M-40vsVario FuturistFortis Marinemaster M-40vsYema Wristmaster Slim Small Seconds CMM.29