Side by side

Sugess Seestern S446 GMTvsSpinnaker Dumas GMT

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

Seestern S446 GMT
SugessSeestern S446 GMT
MSRP $269
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

13 of 29 specs differ
Diameter
Seestern S446 GMT40mm
Dumas GMT44mm
Power Reserve
Seestern S446 GMT41h
Dumas GMT40h
Water Resistance
Seestern S446 GMT100m
Dumas GMT300m
MSRP
Seestern S446 GMT$269
Dumas GMT$399

Full specifications

Case

6 specs
Diameter
40mm
44mm
Thickness
10mm
15mm
Lug-to-Lug
47mm
48mm
Lug Width
19mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
Black
Blue
Lume
Tritium
None

Movement

4 specs
Caliber
Seiko NH34
Seiko NH34A
Beat Rate
3 vph
28,800 vph
Power Reserve
41h
40h
Complications
GMT, Moonphase, Date
None

Pricing

1 specs
MSRP
$269
$399

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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 S446 GMT

Owners widely praise the Sugess Seestern S446 GMT for its outstanding finishing and materials at its price point, with specific mentions of the cream or ivory dial, polished hands, and clear crystal offering superb legibility. Accuracy is generally good, with one owner reporting +2/3 seconds per day from the Seiko NH34A movement. Some owners find the lume is not a strong point, and the bracelet clasp could benefit from more micro-adjustment, with screw pins noted as cheap. The GMT hand is described as flat by some, and opinions are split on the "Sugess" versus "Seestern" logo. Overall, owners rate the Sugess Seestern S446 GMT highly for its beautiful dial and excellent build quality for the price.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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