Side by side

Sugess Seestern S456 GMTvsYema Granvelle CMM.29

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

Seestern S456 GMT
SugessSeestern S456 GMT
MSRP $299
Granvelle CMM.29
YemaGranvelle CMM.29
MSRP $1,913

At a glance

11 of 29 specs differ
Diameter
Seestern S456 GMT40mm
Granvelle CMM.2939mm
Power Reserve
Seestern S456 GMT40h
Granvelle CMM.2940h
Water Resistance
Seestern S456 GMT200m
Granvelle CMM.2950m
MSRP
Seestern S456 GMT$299
Granvelle CMM.29$1,913

Full specifications

Case

6 specs
Category
GMT
Dress
Diameter
40mm
39mm
Thickness
13mm
8.6mm
Lug-to-Lug
48.8mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
50m

Crystal & Dial

2 specs
Dial Color
Blue
Black
Lume
Tritium
None

Movement

2 specs
Caliber
NH34
Yema CMM.29
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$1,913

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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 Granvelle CMM.29

Owners praise the Yema Granvelle CMM.29's gorgeous dial, noting its guilloché pattern and carved hour indices that catch the light. One owner describes the movement as a "feast for the eyes" but finds the watch frustrating at work due to its lack of a specific function. On balance, owners appreciate the Yema Granvelle CMM.29 for its visually striking dial and movement finishing, with some finding its utility limited in certain professional contexts.

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