Side by side

Grand Seiko SBGK007vsSugess MoonPhase Master SU2108

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

SBGK007
Grand SeikoSBGK007
MSRP $7,300
MoonPhase Master SU2108
SugessMoonPhase Master SU2108
MSRP $549

At a glance

18 of 29 specs differ
Diameter
SBGK00739mm
MoonPhase Master SU210840mm
Power Reserve
SBGK00772h
MoonPhase Master SU210841h
Water Resistance
SBGK00730m
MoonPhase Master SU21085m
MSRP
SBGK007$7,300
MoonPhase Master SU2108$549

Full specifications

Case

9 specs
Category
Dress
Chronograph
Diameter
39mm
40mm
Thickness
11.6mm
11.5mm
Lug-to-Lug
44mm
46mm
Lug Width
19mm
20mm
Material
Stainless Steel
Stainless Steel/Gold
Finish
Brushed and polished
Polished
Water Resistance
30m
5m
Caseback
Solid
Display

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
S438 White

Movement

6 specs
Caliber
9S63
Seagull ST21
Type
Manual
Automatic
Beat Rate
28,800 vph
4 vph
Power Reserve
72h
41h
Jewels
25
21
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$7,300
$549

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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 SBGK007

The Grand Seiko SBGK007 is praised for its glorious champagne-to-silver-white sunburst dial and domed sapphire crystal. Owners and reviewers highlight its wonderfully slim profile, attributed to the manual-wind movement, contributing to excellent wearability and a design that subtly evokes vintage pieces. The movement is described as attractive yet workmanlike, with accuracy rated between +5 to -3 seconds per day and a 72-hour power reserve. The watch measures 39mm and 11.6mm thick, and is offered on a high-quality leather strap. On balance, owners and reviewers highly regard the Grand Seiko SBGK007 for its elegant slim case and beautifully textured dial.

Sugess MoonPhase Master SU2108

Owners widely praise the Sugess MoonPhase Master SU2108 for its gorgeous, affordable dress watch aesthetic, intricate dial details, and elegant rose gold finish. Reviewers note a well-decorated Seagull ST2108 movement averaging +7 seconds daily, a lumed moonphase, applied Roman numerals, and a multi-textured dial. However, some owners find the 40mm diameter and 50mm lug-to-lug too large for smaller wrists, and the polished blue hands can make quick time-telling difficult. Criticisms also include a date hand that obscures numerals, a domed sapphire crystal lacking AR coating, and stiff stock straps. On balance, owners rate the Sugess MoonPhase Master SU2108 highly for its elegant design and value in the affordable dress watch segment.

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