Side by side

Grand Seiko SLGB023vsSpinnaker Croft 39 GMT

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

SLGB023
Grand SeikoSLGB023
MSRP $12,400
Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445

At a glance

13 of 29 specs differ
Diameter
SLGB02340.8mm
Croft 39 GMT39mm
Power Reserve
SLGB02372h
Croft 39 GMT40h
Water Resistance
SLGB023300m
Croft 39 GMT100m
MSRP
SLGB023$12,400
Croft 39 GMT$445

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40.8mm
39mm
Thickness
12.9mm
13mm
Lug-to-Lug
48.5mm
47mm
Lug Width
21mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Red

Movement

3 specs
Caliber
9RB1
Seiko NH34A
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$12,400
$445

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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 SLGB023

Owners and reviewers widely praise the Grand Seiko SLGB023 for its comfortable 40.8mm titanium case and the smooth winding feel of its Spring Drive 9RB1 movement. The dial's gradient blue "ushio" motif is a highlight, though some reviewers note the bezel's fully lumed scale as a missed opportunity. Enthusiasts are divided on the power reserve indicator's placement and the design of the hour and minute hands. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its comfortable titanium case and the refined Spring Drive movement.

Spinnaker Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

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