Side by side

Sugess Seestern Heritage S436-2 BB GMTvsSpinnaker Dumas GMT

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

Seestern Heritage S436-2 BB GMT
SugessSeestern Heritage S436-2 BB GMT
MSRP $299
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

12 of 29 specs differ
Diameter
Seestern Heritage S436-2 BB GMT40mm
Dumas GMT44mm
Power Reserve
Seestern Heritage S436-2 BB GMT35h
Dumas GMT40h
Water Resistance
Seestern Heritage S436-2 BB GMT10m
Dumas GMT300m
MSRP
Seestern Heritage S436-2 BB GMT$299
Dumas GMT$399

Full specifications

Case

5 specs
Diameter
40mm
44mm
Thickness
12.2mm
15mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
10m
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
35h
40h
Complications
GMT, 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 Heritage S436-2 BB GMT

Owners widely praise the Sugess Seestern Heritage S436-2 BB GMT for its 39mm sizing, 12mm thinness, and light yet solid feel, with many appreciating its legibility due to the matte dial, clear crystal, and strong lume, though one owner flags the lume as a weak point. The case finishing is considered excellent, and the blue dial and satin finish are favorably compared to alternatives. Some owners report issues with a loose bezel, with others finding it improved after tuning, and one owner notes the seconds hand is too short. The bracelet clasp lacks sufficient micro-adjustment and screw pins are difficult to remove. On balance, owners rate the Sugess Seestern Heritage S436-2 BB GMT highly for its comfortable wearability and attractive finishing at 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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