Side by side

Sugess MoonPhase Master S437vsSpinnaker Hull Diver

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

MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549
Hull Diver
SpinnakerHull Diver
MSRP $375

At a glance

13 of 29 specs differ
Diameter
MoonPhase Master S43740mm
Hull Diver42mm
Power Reserve
MoonPhase Master S43748h
Hull Diver40h
Water Resistance
MoonPhase Master S43750m
Hull Diver300m
MSRP
MoonPhase Master S437$549
Hull Diver$375

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
40mm
42mm
Thickness
13.5mm
15mm
Lug-to-Lug
47.8mm
47.5mm
Material
Stainless Steel/Rose Gold
316L Stainless Steel
Water Resistance
50m
300m
Caseback
Display
Solid

Crystal & Dial

2 specs
Dial Color
White
Green
Lume
X1
None

Movement

3 specs
Caliber
ST2528
SII NH35A
Power Reserve
48h
40h
Complications
Moonphase, Date
None

Pricing

1 specs
MSRP
$549
$375

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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 Hull Diver

The Spinnaker Hull Diver is widely praised for its excellent build quality, featuring a milled clasp, solid links, and a strong anti-reflective coating on its sapphire crystal. Owners highlight its value, with one calling it one of their best affordable watches at $170, and appreciate the dual-part case construction that contributes to a reduced thickness. The blue dial is noted for its attractive play of light, and the screw-down crown is easy to operate. However, the lume is considered average, and some desire a higher beat movement. On balance, owners rate the Spinnaker Hull Diver highly for its robust construction and strong value proposition at its price point.

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