Side by side

Maen Greenwich 38 GMTvsYema Superman Steel CMM.10

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

Greenwich 38 GMT
MaenGreenwich 38 GMT
MSRP $799
Superman Steel CMM.10
YemaSuperman Steel CMM.10
MSRP $1,890
What people say

Owners + reviewers, side by side

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

Maen Greenwich 38 GMT

Owners and reviewers widely praise the Maen Greenwich 38 GMT for its elegant 38mm sizing, exceptional case finishing, and flawless enamel dial. The SwissTech S24-045 movement is noted for its smooth winding and accurate timekeeping, with figures ranging from zero deviation to +7 seconds per day, though its 40-hour power reserve is considered unremarkable. Some owners find the hour markers too bold, the GMT hour markings difficult to read, and the GMT hand alignment slightly off, while one user experienced crown resistance and movement stoppage. The lug-to-lug measurement is reported to make the 38mm case wear slightly larger. Overall, owners and reviewers rate the Maen Greenwich 38 GMT highly for its premium finishing and design at its price point.

Yema Superman Steel CMM.10

Owners widely praise the Yema Superman Steel CMM.10 for its refined casework, including polished lug bevels and an elegant crown guard, and its comfortable 39mm x 10.5mm dimensions. The glossy black lacquer dial and bezel insert are noted for adding depth, and the in-house CMM.10 movement is reported to be accurate, with one owner observing a loss of only 2 seconds over 2 days. The scales bracelet is described as gorgeous and nearly invisible on the wrist, though some find its polished center links too flashy. One reviewer flagged the signature bezel lock mechanism as flimsy and inconvenient. The CMM.10 automatic movement offers a 70-hour power reserve and is regulated to within +5/-3 seconds per day. On balance, owners and reviewers rate the Yema Superman Steel CMM.10 highly for its refined finishing and comfortable wearability at its price point.

From video reviewers

The Yema Steel features an in-house movement with a micro-rotor, one of the most beautiful at this price point. The watch's clasp feels a bit thin, which is a notable drawback. Reviewers disagree on the movement's power reserve, with one reviewer noting a 42-hour reserve and the other not mentioning power reserve at all.

At a glance

8 of 29 specs differ
Diameter
Greenwich 38 GMT38mm
Superman Steel CMM.1039mm
Power Reserve
Greenwich 38 GMT40h
Superman Steel CMM.1040h
Water Resistance
Greenwich 38 GMT100m
Superman Steel CMM.10300m
MSRP
Greenwich 38 GMT$799
Superman Steel CMM.10$1,890

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
38mm
39mm
Thickness
12mm
11.3mm
Lug Width
19mm
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
MGG.01
Steel

Movement

1 specs
Caliber
Yema CMM.10

Pricing

1 specs
MSRP
$799
$1,890
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