Side by side

Sugess MoonPhase Master S437vsLongines FLAGSHIP CLASSIC

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

MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549
FLAGSHIP CLASSIC
LonginesFLAGSHIP CLASSIC
MSRP $2,700

At a glance

21 of 29 specs differ
Diameter
MoonPhase Master S43740mm
FLAGSHIP CLASSIC40mm
Power Reserve
MoonPhase Master S43748h
FLAGSHIP CLASSIC72h
Water Resistance
MoonPhase Master S43750m
FLAGSHIP CLASSIC30m
MSRP
MoonPhase Master S437$549
FLAGSHIP CLASSIC$2,700

Full specifications

Case

8 specs
Category
Chronograph
Thickness
13.5mm
8.7mm
Lug-to-Lug
47.8mm
47mm
Lug Width
22mm
21mm
Material
Stainless Steel/Rose Gold
Stainless Steel
Finish
Brushed and polished
Water Resistance
50m
30m
Caseback
Display
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
White
Brown
Indices
Applied
Diamond indexes
Lume
X1
Super-LumiNova

Movement

7 specs
Caliber
ST2528
L888.5
Beat Rate
28,800 vph
25,200 vph
Power Reserve
48h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Moonphase, Date
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$549
$2,700

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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.

Longines FLAGSHIP CLASSIC

Owners praise the Longines FLAGSHIP CLASSIC as a beautiful, classy dress watch with deep brand heritage, suitable for special occasions. One owner noted the stock strap appears narrow due to the lug design, making spring bars visible. The Longines FLAGSHIP CLASSIC reissue is considered a fantastic deal at $700, especially after a recent official Longines service and dial replacement, presenting it as a like-new watch. However, its lack of patina may disappoint collectors who value "character" from wear and scratches. Overall, owners rate the Longines FLAGSHIP CLASSIC highly for its aesthetic appeal and value proposition.

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