Side by side

Fortis Marinemaster M-40vsGrand Seiko SBGE285

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520
SBGE285
Grand SeikoSBGE285
MSRP $8,900

At a glance

14 of 29 specs differ
Diameter
Marinemaster M-4040mm
SBGE28541mm
Power Reserve
Marinemaster M-4038h
SBGE28572h
Water Resistance
Marinemaster M-40300m
SBGE285100m
MSRP
Marinemaster M-40$3,520
SBGE285$8,900

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
41mm
Thickness
13mm
13.9mm
Lug-to-Lug
48.3mm
Lug Width
21mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Orange
Black

Movement

4 specs
Caliber
Sellita SW220-1
9R66
Type
Automatic
Spring Drive
Power Reserve
38h
72h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$8,900

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

Grand Seiko SBGE285

The Grand Seiko SBGE285 is widely praised for its textured dial, high-intensity titanium case with Zaratsu polishing, and Evolution 9 design, which reviewers consider epitomizes modern Grand Seiko. Owners and reviewers highlight its refined yet sporty appearance and lightweight titanium construction, noting it wears smaller than its 41mm dimensions. The 9R66 Spring Drive movement is lauded for its precision, with accuracy reported at ±1 second per day. One owner notes the watch head shows no wear and there are no scratches on the back of the lugs, indicating excellent overall condition. Overall, owners and reviewers rate the Grand Seiko SBGE285 highly for its blend of sophisticated finishing, comfortable wearability, and precise Spring Drive GMT functionality.

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