Side by side

Sugess MoonPhase Master S437vsSpinnaker Croft 39 GMT

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

MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549
Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445

At a glance

14 of 29 specs differ
Diameter
MoonPhase Master S43740mm
Croft 39 GMT39mm
Power Reserve
MoonPhase Master S43748h
Croft 39 GMT40h
Water Resistance
MoonPhase Master S43750m
Croft 39 GMT100m
MSRP
MoonPhase Master S437$549
Croft 39 GMT$445

Full specifications

Case

8 specs
Category
Chronograph
GMT
Diameter
40mm
39mm
Thickness
13.5mm
13mm
Lug-to-Lug
47.8mm
47mm
Lug Width
22mm
20mm
Material
Stainless Steel/Rose Gold
316L Stainless Steel
Water Resistance
50m
100m
Caseback
Display
Solid

Crystal & Dial

2 specs
Dial Color
White
Red
Lume
X1
None

Movement

3 specs
Caliber
ST2528
Seiko NH34A
Power Reserve
48h
40h
Complications
Moonphase, Date
None

Pricing

1 specs
MSRP
$549
$445

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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.

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.

Spinnaker Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

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