Side by side

Fortis Marinemaster M-40vsRZE Fortitude 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
Fortitude GMT
RZEFortitude GMT
MSRP $719

At a glance

15 of 29 specs differ
Diameter
Marinemaster M-4040mm
Fortitude GMT41mm
Power Reserve
Marinemaster M-4038h
Fortitude GMT40h
Water Resistance
Marinemaster M-40300m
Fortitude GMT200m
MSRP
Marinemaster M-40$3,520
Fortitude GMT$719

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
41mm
Thickness
13mm
12mm
Lug-to-Lug
47mm
Lug Width
21mm
20mm
Material
Stainless Steel
Grade 5 Titanium
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Orange
Red
Lume
None
Super-LumiNova BGW9

Movement

4 specs
Caliber
Sellita SW220-1
Miyota 9075
Power Reserve
38h
40h
Jewels
26
25
Complications
None
GMT

Pricing

1 specs
MSRP
$3,520
$719

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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.

RZE Fortitude GMT

The RZE Fortitude GMT is widely praised for its lightweight titanium construction and durable UltraHex coating, offering exceptional value under $700. Owners and reviewers highlight its comfortable wearability, with a bracelet featuring a quick-adjust clasp and multiple micro-adjustment positions. The Miyota 9075 flyer GMT movement is noted for its accuracy, with one owner reporting -1 to +1 seconds per day, though another source states a range of -10/+30 seconds per day. The watch's design is appreciated for its soul and attention to detail, including a subtle red crown tube indicator and faceted lugs, and its Nimbus Grey dial features a coarse, sandpaper-like texture and fumé effect. A reviewer points out the rotor can be loud and a smaller screwdriver is needed for sizing, while an owner found the GMT hand lume confusing. Overall, owners and reviewers rate the RZE Fortitude GMT highly for its comfortable titanium build, durable coating, and excellent value.

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