Side by side

Fortis Marinemaster M-40vsSugess MoonPhase Master S437

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
MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549

At a glance

14 of 29 specs differ
Diameter
Marinemaster M-4040mm
MoonPhase Master S43740mm
Power Reserve
Marinemaster M-4038h
MoonPhase Master S43748h
Water Resistance
Marinemaster M-40300m
MoonPhase Master S43750m
MSRP
Marinemaster M-40$3,520
MoonPhase Master S437$549

Full specifications

Case

7 specs
Category
Diver
Chronograph
Thickness
13mm
13.5mm
Lug-to-Lug
47.8mm
Lug Width
21mm
22mm
Material
Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
300m
50m
Caseback
Solid
Display

Crystal & Dial

2 specs
Dial Color
Orange
White
Lume
None
X1

Movement

4 specs
Caliber
Sellita SW220-1
ST2528
Power Reserve
38h
48h
Jewels
26
25
Complications
None
Moonphase, Date

Pricing

1 specs
MSRP
$3,520
$549

Follow this matchup

Get a note when Fortis Marinemaster M-40 vs Sugess MoonPhase Master S437 gets more votes, a community discussion, or a price drop. No account needed.

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.

Sugess MoonPhase Master S437

Owners widely praise the Sugess MoonPhase Master S437 for its striking dial, often described as deep blue or aventurine, and its value, with prices around $171-$175. The Seagull ST1908 movement is noted as accurate, with one owner reporting +3 seconds over 18 hours and another +7 seconds daily, and its hand-winding action is smooth. However, the watch's thickness, potentially over 13mm, is a concern for some as a dress watch, and the long lugs may pose a fit issue on smaller wrists. A potential design flaw in the moonphase window, showing two phases simultaneously, is flagged as a deal-breaker by some. The included leather straps are considered stiff and uncomfortable, and the domed sapphire crystal lacks AR coating, leading to reflections. On balance, owners rate the Sugess MoonPhase Master S437 highly for its stunning dial and value, despite some fit and finishing concerns.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.