Side by side

Sugess Seestern S430 Titanium DivervsSpinnaker Dumas GMT

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

Seestern S430 Titanium Diver
SugessSeestern S430 Titanium Diver
MSRP $299
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

12 of 29 specs differ
Diameter
Seestern S430 Titanium Diver40mm
Dumas GMT44mm
Power Reserve
Seestern S430 Titanium Diver40h
Dumas GMT40h
Water Resistance
Seestern S430 Titanium Diver200m
Dumas GMT300m
MSRP
Seestern S430 Titanium Diver$299
Dumas GMT$399

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
44mm
Thickness
12.5mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
20mm
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

1 specs
Lume
Tritium
None

Movement

3 specs
Caliber
Seiko NH35
Seiko NH34A
Beat Rate
3 vph
28,800 vph
Complications
GMT, Chronograph, Moonphase, Date
None

Pricing

1 specs
MSRP
$299
$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 S430 Titanium Diver

Owners widely praise the Sugess Seestern S430 Titanium Diver for its genuine titanium construction, making it extremely light and comfortable at 92 grams on a 6.7-inch wrist. The ceramic bezel is described as fantastic and mesmerizing to use, and the brushed finishing is noted as nice. The watch features an NH38 movement, which is appreciated for its lack of ghost date functionality. However, some owners find the price comparable to competitors and have noted issues with the clasp's fit, with some finding the existing holes insufficient and the rotating arm needing to bend. The crown unscrewing is not smooth, and the bezel action is described as gritty with uneven resistance. One owner reported a crown tube failure on a V1 model. Overall, owners rate the Sugess Seestern S430 Titanium Diver highly for its lightweight titanium build and excellent ceramic bezel, despite some concerns regarding the clasp design.

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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