Side by side

Sugess Seestern S456 GMTvsYema Superman Dato CMM.10

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

Seestern S456 GMT
SugessSeestern S456 GMT
MSRP $299
Superman Dato CMM.10
YemaSuperman Dato CMM.10
MSRP $1,777

At a glance

12 of 29 specs differ
Diameter
Seestern S456 GMT40mm
Superman Dato CMM.1039.5mm
Power Reserve
Seestern S456 GMT40h
Superman Dato CMM.1040h
Water Resistance
Seestern S456 GMT200m
Superman Dato CMM.10300m
MSRP
Seestern S456 GMT$299
Superman Dato CMM.10$1,777

Full specifications

Case

6 specs
Category
GMT
Diver
Diameter
40mm
39.5mm
Thickness
13mm
11.85mm
Lug-to-Lug
48.8mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
39.5mm Automatic
Lume
Tritium
None

Movement

2 specs
Caliber
NH34
Yema CMM.10
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$1,777

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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 Seestern S456 GMT

Owners widely praise the Sugess Seestern S456 GMT for its excellent case finishing, deep blue sunburst dial, and crisp indices, with one owner rating the overall fit and finish 9.5 out of 10. The watch is noted for its legibility, strong lume that lasts about 4 hours, and accurate timekeeping around -4 seconds per day, with easy GMT hand adjustment. Some owners report issues with a loose or friction-based unidirectional bezel, while others find theirs tight and prefer a bidirectional GMT bezel. The sapphire crystal is described as clear and flat by some, but others find it very reflective with AR coating that could be improved. Sizing is generally considered good at 39mm with a 46mm lug-to-lug and 12mm thickness, though one owner expresses concern about its 49mm lug-to-lug and 41mm bezel diameter. Overall, owners rate the Sugess Seestern S456 GMT highly for its impressive finishing and dial at its price point.

Yema Superman Dato CMM.10

Owners widely praise the Yema Superman Dato CMM.10 for its excellent value and retro-inspired design, with particular appreciation for the tropical dial and faded bezel. The in-house CMM.10 movement is noted for its 70-hour power reserve and stated accuracy of +5/-3 seconds per day. Some owners find the strap uncomfortable on smaller wrists, and the bezel lock mechanism is considered flimsy by one reviewer. The CMM.10 movement is thicker than alternative micro-rotor movements. Overall, owners rate the Yema Superman Dato CMM.10 highly for its distinctive aesthetic and strong value proposition.

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