Side by side

Spinnaker Dumas GMTvsSugess Tourbillon Master SU8001

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
Tourbillon Master SU8001
SugessTourbillon Master SU8001
MSRP $999

At a glance

14 of 29 specs differ
Diameter
Dumas GMT44mm
Tourbillon Master SU800141mm
Power Reserve
Dumas GMT40h
Tourbillon Master SU800140h
Water Resistance
Dumas GMT300m
Tourbillon Master SU800150m
MSRP
Dumas GMT$399
Tourbillon Master SU8001$999

Full specifications

Case

8 specs
Category
GMT
Chronograph
Diameter
44mm
41mm
Thickness
15mm
10mm
Lug-to-Lug
48mm
46mm
Lug Width
22mm
10mm
Material
316L Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
300m
50m
Caseback
Solid
Display

Crystal & Dial

1 specs
Dial Color
Blue
Black

Movement

4 specs
Caliber
Seiko NH34A
Seagull ST8000
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph
Complications
None
GMT, Moonphase, Date, Power reserve indicator

Pricing

1 specs
MSRP
$399
$999

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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.

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.

Sugess Tourbillon Master SU8001

Owners widely praise the Sugess Tourbillon Master for its accessible tourbillon complication and value, with one owner noting an initial accuracy of +2 seconds per day. However, community feedback flags a winding stem that feels flimsy and straps that are considered poor, featuring a comically large buckle. Some owners report a degradation in accuracy to around -20 seconds per day after a month, and the steel case edges are described as rounded with the material proving soft and prone to scratching. On balance, owners view the Sugess Tourbillon Master as a remarkable value for its tourbillon feature, despite concerns regarding strap quality and long-term material durability.

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