Side by side

Grand Seiko SBGW258vsSpinnaker Dumas GMT

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

SBGW258
Grand SeikoSBGW258
MSRP $26,000
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

13 of 29 specs differ
Diameter
SBGW25838mm
Dumas GMT44mm
Power Reserve
SBGW25872h
Dumas GMT40h
Water Resistance
SBGW25830m
Dumas GMT300m
MSRP
SBGW258$26,000
Dumas GMT$399

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
38mm
44mm
Thickness
10.9mm
15mm
Lug-to-Lug
45.8mm
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
9S64
Seiko NH34A
Type
Manual
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$26,000
$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 SBGW258

The Grand Seiko SBGW258 is a yellow gold dress watch featuring a 38mm case and a manual-wind caliber 9S64 movement with a 72-hour power reserve, rated for accuracy to +5/-3 seconds per day. It includes a raised gold logo on the dial and comes with a brown leather strap. On balance, reviewers highlight the Grand Seiko SBGW258 as a classic, precious metal timepiece representing fine watchmaking tradition.

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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