Side by side

Seiko Prospex Land Mechanical GMTvsSugess Tourbillon Master SU8230

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

Prospex Land Mechanical GMT
SeikoProspex Land Mechanical GMT
MSRP $1,150
Tourbillon Master SU8230
SugessTourbillon Master SU8230
MSRP $1,399
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of a classic design, comfortable bracelet, and attractive gray dial with a bubbly crystal. Reviewers highlight its handsome everyday sports watch appeal, solid specifications, and classic Seiko diver aesthetics, offering great value. However, community members are divided on the 6R movement's accuracy, with some reporting significant deviations even after regulation, while others find it competitive for the price. A point of contention is the GMT function, with some wishing for a "flyer" style local jump GMT instead of the "caller" type, and the internal compass bezel is described as finicky and difficult to read. Owners generally consider the Seiko Prospex Land Mechanical GMT overpriced at its retail price, suggesting better value is found on sale or closer to $700.

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.

At a glance

17 of 29 specs differ
Diameter
Prospex Land Mechanical GMT39.5mm
Tourbillon Master SU823041mm
Power Reserve
Prospex Land Mechanical GMT72h
Tourbillon Master SU823040h
Water Resistance
Prospex Land Mechanical GMT200m
Tourbillon Master SU823050m
MSRP
Prospex Land Mechanical GMT$1,150
Tourbillon Master SU8230$1,399

Full specifications

Case

8 specs
Category
GMT
Chronograph
Diameter
39.5mm
41mm
Thickness
13.6mm
11mm
Lug-to-Lug
46.4mm
46mm
Lug Width
20mm
11mm
Material
Stainless Steel
Yellow Gold/Rose Gold/Bronze
Water Resistance
200m
50m
Caseback
Solid
Display

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

5 specs
Caliber
6R54
Seagull ST8230
Beat Rate
28,800 vph
3 vph
Power Reserve
72h
40h
Jewels
24
25
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$1,150
$1,399
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