Side by side

Spinnaker Bradner GMTvsSugess Tourbillon Master SU8230

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Tourbillon Master SU8230
SugessTourbillon Master SU8230
MSRP $1,399

At a glance

13 of 29 specs differ
Diameter
Bradner GMT42mm
Tourbillon Master SU823041mm
Power Reserve
Bradner GMT40h
Tourbillon Master SU823040h
Water Resistance
Bradner GMT180m
Tourbillon Master SU823050m
MSRP
Bradner GMT$299
Tourbillon Master SU8230$1,399

Full specifications

Case

8 specs
Category
GMT
Chronograph
Diameter
42mm
41mm
Thickness
15mm
11mm
Lug-to-Lug
50mm
46mm
Lug Width
22mm
11mm
Material
316L Stainless Steel
Yellow Gold/Rose Gold/Bronze
Water Resistance
180m
50m
Caseback
Solid
Display

Crystal & Dial

1 specs
Dial Color
Brown
Black

Movement

3 specs
Caliber
Seiko NH34A
Seagull ST8230
Beat Rate
28,800 vph
3 vph
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$299
$1,399

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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.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

Sugess Tourbillon Master SU8230

Owners widely praise the Sugess Tourbillon Master for its stunning enamel dial and impressive finishing at its price point. Accuracy figures vary, with one owner reporting -12s/day and another +6 to +11s/day. Caveats include a cumbersome winding crown, limited 50m water resistance, a 21mm lug width, and a non-hacking movement, with one owner noting a power reserve around two days and noticeable resistance when winding. On balance, owners rate the Sugess Tourbillon Master highly for its visually striking dial and finishing, which significantly elevates its perceived value.

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