Side by side

Fortis Marinemaster M-40vsZelos Thresher 41 GMT

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
Thresher 41 GMT
ZelosThresher 41 GMT
MSRP $729

At a glance

13 of 29 specs differ
Diameter
Marinemaster M-4040mm
Thresher 41 GMT41mm
Power Reserve
Marinemaster M-4038h
Thresher 41 GMT40h
Water Resistance
Marinemaster M-40300m
Thresher 41 GMT200m
MSRP
Marinemaster M-40$3,520
Thresher 41 GMT$729

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
41mm
Thickness
13mm
11.5mm
Lug-to-Lug
41mm
Lug Width
21mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Orange
Damascus LE

Movement

3 specs
Caliber
Sellita SW220-1
Miyota 9075 GMT
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$3,520
$729

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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.

Zelos Thresher 41 GMT

Owners widely praise the Zelos Thresher 41 GMT for its creative design, titanium construction, and excellent lume. Some find the worldtimer bezel busy and the GMT function less easy to read, while others note the double Mother of Pearl dial's dynamic color shifts can be reflective in direct sun. The bezel-based world timer requires manual adjustment and allows for independent GMT use. Overall, owners rate the Zelos Thresher 41 GMT highly for its unique titanium build and striking dial at its price point.

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