Side by side

Sugess MoonPhase Master S437vsGrand Seiko SBGH263

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

MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549
SBGH263
Grand SeikoSBGH263
MSRP $6,200

At a glance

15 of 29 specs differ
Diameter
MoonPhase Master S43740mm
SBGH26339.5mm
Power Reserve
MoonPhase Master S43748h
SBGH26355h
Water Resistance
MoonPhase Master S43750m
SBGH26330m
MSRP
MoonPhase Master S437$549
SBGH263$6,200

Full specifications

Case

8 specs
Category
Chronograph
Dress
Diameter
40mm
39.5mm
Thickness
13.5mm
13.1mm
Lug-to-Lug
47.8mm
46mm
Lug Width
22mm
19mm
Material
Stainless Steel/Rose Gold
Stainless Steel
Water Resistance
50m
30m
Caseback
Display
Solid

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
White
Black
Lume
X1
None

Movement

3 specs
Caliber
ST2528
9S85
Power Reserve
48h
55h
Complications
Moonphase, Date
None

Pricing

1 specs
MSRP
$549
$6,200

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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.

Grand Seiko SBGH263

The Grand Seiko SBGH263 is praised for its excellent finishing for the price, with reviewers comparing it to Jaeger-LeCoultre. Owners and reviewers highlight the stunning 'Shironeri' dial and gold hands/numerals, and the 39.5mm case size is considered a perfect fit, referencing vintage Grand Seiko models. The watch features a 55-hour power reserve from its 36,000 BPH movement, though one reviewer felt the date aperture was unnecessary. On balance, owners and reviewers rate the Grand Seiko SBGH263 highly for its exceptional dial and finishing at its price point.

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