Side by side

Maen Grand Tonneau Ultra ThinvsSugess MoonPhase Master S437

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

Grand Tonneau Ultra Thin
MaenGrand Tonneau Ultra Thin
MSRP $1,519
MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549

At a glance

13 of 29 specs differ
Diameter
Grand Tonneau Ultra Thin34mm
MoonPhase Master S43740mm
Power Reserve
Grand Tonneau Ultra Thin40h
MoonPhase Master S43748h
Water Resistance
Grand Tonneau Ultra Thin50m
MoonPhase Master S43750m
MSRP
Grand Tonneau Ultra Thin$1,519
MoonPhase Master S437$549

Full specifications

Case

7 specs
Category
Dress
Chronograph
Diameter
34mm
40mm
Thickness
6.4mm
13.5mm
Lug-to-Lug
47.8mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel/Rose Gold
Caseback
Solid
Display

Crystal & Dial

2 specs
Dial Color
MNL.04
White
Lume
None
X1

Movement

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

Pricing

1 specs
MSRP
$1,519
$549

Follow this matchup

Get a note when Maen Grand Tonneau Ultra Thin vs Sugess MoonPhase Master S437 gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Maen Grand Tonneau Ultra Thin

Owners widely report the Maen Grand Tonneau Ultra Thin features a La Joux-Perret D101 manual-wind movement and a double-layer enamel dial. Some owners criticize the bracelet design and find the dial too small and lacking indices. One owner describes the Maen Grand Tonneau Ultra Thin as "hideous with a good movement." On balance, owners are divided on the Maen Grand Tonneau Ultra Thin, with some appreciating its movement and dial while others find its design unappealing.

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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.