Side by side

Maen Greenwich 38 GMTvsYema Superman Tourbillon CMM.31 Limited Edition

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 Tourbillon CMM.31 Limited Edition
YemaSuperman Tourbillon CMM.31 Limited Edition
MSRP $13,000
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 Tourbillon CMM.31 Limited Edition

Owners praise the Yema Superman Tourbillon CMM.31 Limited Edition as an incredible and crazy watch, appreciating its unnecessary tourbillon complication and impressive specifications at a remarkable price point. The titanium construction contributes to comfort despite the 43mm case size. One reviewer notes the bracelet clasp's extension system is somewhat crude. On balance, owners and reviewers rate the Yema Superman Tourbillon CMM.31 Limited Edition highly for its compelling tourbillon feature at an accessible price.

At a glance

9 of 29 specs differ
Diameter
Greenwich 38 GMT38mm
Superman Tourbillon CMM.31 Limited Edition43mm
Power Reserve
Greenwich 38 GMT40h
Superman Tourbillon CMM.31 Limited Edition40h
Water Resistance
Greenwich 38 GMT100m
Superman Tourbillon CMM.31 Limited Edition300m
MSRP
Greenwich 38 GMT$799
Superman Tourbillon CMM.31 Limited Edition$13,000

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
38mm
43mm
Thickness
12mm
11.7mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
MGG.01
Steel

Movement

1 specs
Caliber
Yema CMM.31 Tourbillon

Pricing

1 specs
MSRP
$799
$13,000
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