Side by side
Fortis Marinemaster M-40vsGrand Seiko SBGK006
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
Marinemaster M-4040mm
SBGK00639mm
Power Reserve
Marinemaster M-4038h
SBGK00672h
Water Resistance
Marinemaster M-40300m
SBGK00630m
MSRP
Marinemaster M-40$3,520
SBGK006$22,200
Full specifications
Case
7 specsCategory
Diver
Dress
Diameter
40mm
39mm
Thickness
13mm
11.6mm
Lug-to-Lug
—
44mm
Lug Width
21mm
19mm
Material
Stainless Steel
Gold
Water Resistance
300m
30m
Crystal & Dial
2 specsAR Coating
Inner
Yes
Dial Color
Orange
Black
Movement
4 specsCaliber
Sellita SW220-1
9S63
Type
Automatic
Manual
Power Reserve
38h
72h
Jewels
26
25
Pricing
1 specsMSRP
$3,520
$22,200
Follow this matchup
Get a note when Fortis Marinemaster M-40 vs Grand Seiko SBGK006 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 SBGK006Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsGrand Seiko SBGK006Marathon Arctic OSAR 36mm AutomaticvsGrand Seiko SBGK006Bremont S302vsGrand Seiko SBGK006Fears Garrick (White)vsFortis Marinemaster M-40Fears White Series 2 (2019)vsFortis Marinemaster M-40