Side by side

Grand Seiko SLGB005vsSugess Tourbillon Master SU8230

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

SLGB005
Grand SeikoSLGB005
MSRP $11,100
Tourbillon Master SU8230
SugessTourbillon Master SU8230
MSRP $1,399

At a glance

15 of 29 specs differ
Diameter
SLGB00537mm
Tourbillon Master SU823041mm
Power Reserve
SLGB00572h
Tourbillon Master SU823040h
Water Resistance
SLGB005100m
Tourbillon Master SU823050m
MSRP
SLGB005$11,100
Tourbillon Master SU8230$1,399

Full specifications

Case

8 specs
Category
Dress
Chronograph
Diameter
37mm
41mm
Thickness
11.4mm
11mm
Lug-to-Lug
44.3mm
46mm
Lug Width
20mm
11mm
Material
Stainless Steel
Yellow Gold/Rose Gold/Bronze
Water Resistance
100m
50m
Caseback
Solid
Display

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

5 specs
Caliber
9RB2
Seagull ST8230
Type
Spring Drive
Automatic
Beat Rate
28,800 vph
3 vph
Power Reserve
72h
40h
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$11,100
$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.

Grand Seiko SLGB005

The Grand Seiko SLGB005 is widely praised for its stunning "Ice Forest" smoked purple dial, inspired by frost-covered trees, and its compact 37mm Ever-Brilliant Steel case. It is powered by the 9RB2 Spring Drive caliber, noted for its exceptional accuracy of ±3 seconds per month or ±20 seconds per year, and offers a 72-hour power reserve. Reviewers consistently highlight the dial's mesmerizing beauty and the case's sculpted design as significant strengths. However, multiple sources express disappointment that the Grand Seiko SLGB005 omits the micro-adjustment clasp found on other models, especially considering its $11,100 price point, though one reviewer found this did not detract from wearability. Overall, reviewers rate the Grand Seiko SLGB005 highly for its visually arresting dial and precise Spring Drive movement, despite the clasp oversight.

From video reviewers

The watch features a ±3 seconds per month accurate Ultra Fine Accuracy Calibre 9RB2 movement. The Ever-Brilliant Steel finish has polishing flaws that detract from the watch's appearance. Reviewers disagree on the movement's accuracy, with one reviewer citing ±3 seconds per month and another ±10 seconds per month.

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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