Side by side

Grand Seiko SBGY002vsSpinnaker Dumas GMT

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

SBGY002
Grand SeikoSBGY002
MSRP $30,000
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

13 of 29 specs differ
Diameter
SBGY00238.5mm
Dumas GMT44mm
Power Reserve
SBGY00272h
Dumas GMT40h
Water Resistance
SBGY00230m
Dumas GMT300m
MSRP
SBGY002$30,000
Dumas GMT$399

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
38.5mm
44mm
Thickness
10.2mm
15mm
Lug-to-Lug
43.7mm
48mm
Lug Width
19mm
22mm
Material
Gold
316L Stainless Steel
Water Resistance
30m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Blue

Movement

3 specs
Caliber
9R31
Seiko NH34A
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$30,000
$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 SBGY002

Owners and reviewers widely praise the Grand Seiko SBGY002 for its impeccable design, finishing, and attention to detail, highlighting its slender 38.5mm case and thin profile for comfortable wear. The Spring Drive movement, calibre 9R31, is noted for its accuracy within one second per day and a 72-hour power reserve, with one owner appreciating the movement's finishing and the watch's overall class and simplicity, preferring the power reserve indicator on the case back. The Snowflake dial's appearance changes with light, often appearing less yellow than expected, and a matte blue strap can make the SBGY002 more casual for daily wear, complementing the seconds hand. The Grand Seiko SBGY002 is considered a home run for its combination of iconic dial and dress case, though its yellow gold construction and price point position it differently than steel alternatives.

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.

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