Side by side

Maen Grand Tonneau Ultra ThinvsYema Wristmaster Slim CMM.20

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
Wristmaster Slim CMM.20
YemaWristmaster Slim CMM.20
MSRP $2,117

At a glance

8 of 29 specs differ
Diameter
Grand Tonneau Ultra Thin34mm
Wristmaster Slim CMM.2039mm
Power Reserve
Grand Tonneau Ultra Thin40h
Wristmaster Slim CMM.2040h
Water Resistance
Grand Tonneau Ultra Thin50m
Wristmaster Slim CMM.20100m
MSRP
Grand Tonneau Ultra Thin$1,519
Wristmaster Slim CMM.20$2,117

Full specifications

Case

5 specs
Category
Dress
GMT
Diameter
34mm
39mm
Thickness
6.4mm
9mm
Lug Width
24mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
MNL.04
Black

Movement

1 specs
Caliber
Yema CMM.20

Pricing

1 specs
MSRP
$1,519
$2,117

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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.

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.

Yema Wristmaster Slim CMM.20

The Yema Wristmaster Slim CMM.20 is widely praised for its compelling integrated bracelet design and comfortable 39mm wearability. Reviewers highlight its impressive value, featuring an in-house CMM.20 micro-rotor movement with a 70-hour power reserve, adjusted to -3/+7 seconds per day, all within a slim 9mm case. Some note the domed sapphire crystal can produce glare and the dial text is quite small. On balance, reviewers rate the Yema Wristmaster Slim CMM.20 highly for its integrated design and value proposition with a micro-rotor movement.

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