Side by side

Fortis Stratoliner S-41vsSugess MoonPhase Master S437

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

Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450
MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549

At a glance

13 of 29 specs differ
Diameter
Stratoliner S-4141mm
MoonPhase Master S43740mm
Power Reserve
Stratoliner S-4160h
MoonPhase Master S43748h
Water Resistance
Stratoliner S-41200m
MoonPhase Master S43750m
MSRP
Stratoliner S-41$5,450
MoonPhase Master S437$549

Full specifications

Case

7 specs
Diameter
41mm
40mm
Thickness
14mm
13.5mm
Lug-to-Lug
47.8mm
Lug Width
21mm
22mm
Material
Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
200m
50m
Caseback
Solid
Display

Crystal & Dial

1 specs
Lume
None
X1

Movement

4 specs
Caliber
Manufacture Caliber WERK 17
ST2528
Power Reserve
60h
48h
Jewels
36
25
Complications
None
Moonphase, Date

Pricing

1 specs
MSRP
$5,450
$549

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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 Stratoliner S-41

Owners widely praise the Fortis Stratoliner S-41 for its purpose-built design and outstanding details, particularly its space blue lume and bright orange date on the dial. Reviewers note the WERK 17 movement offers a 60-hour power reserve. However, the Fortis Stratoliner S-41's 41mm case thickness and lug-to-lug distance lead some to perceive it as wearing large, and the dial's small text and flat design are flagged as potential drawbacks. Overall, owners and reviewers highlight the Fortis Stratoliner S-41's unique design and innovative movement as its primary strengths.

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.

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