Side by side

Fortis Marinemaster M-40vsSinn T50 GBDR

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
T50 GBDR
SinnT50 GBDR
MSRP $4,428

At a glance

16 of 29 specs differ
Diameter
Marinemaster M-4040mm
T50 GBDR41mm
Power Reserve
Marinemaster M-4038h
T50 GBDR38h
Water Resistance
Marinemaster M-40300m
T50 GBDR500m
MSRP
Marinemaster M-40$3,520
T50 GBDR$4,428

Full specifications

Case

7 specs
Diameter
40mm
41mm
Thickness
13mm
12.3mm
Lug Width
21mm
20mm
Material
Stainless Steel
Titanium
Finish
Brushed and polished
bead-blasted
Water Resistance
300m
500m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Orange
Black
Indices
Applied
Lume
None
Luminescent

Movement

3 specs
Caliber
Sellita SW220-1
SW 300-1
Jewels
26
25
Complications
None
Date

Pricing

1 specs
MSRP
$3,520
$4,428

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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.

Sinn T50 GBDR

The Sinn T50 GBDR features a titanium case with a GoldBronze bezel and matte black dial, presenting a two-tone toolish aesthetic that reviewers find appealing. The GoldBronze alloy offers improved skin compatibility and corrosion resistance, developing patina slower than standard bronze. Reviewers note a stamped clasp that can come loose and suggest the price point may be high for some Sinn enthusiasts.

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