Side by side

Grand Seiko SBGA375vsSpinnaker Croft Mid-Size Skeleton

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

SBGA375
Grand SeikoSBGA375
MSRP $5,600
Croft Mid-Size Skeleton
SpinnakerCroft Mid-Size Skeleton
MSRP $425

At a glance

11 of 29 specs differ
Diameter
SBGA37540mm
Croft Mid-Size Skeleton40mm
Power Reserve
SBGA37572h
Croft Mid-Size Skeleton40h
Water Resistance
SBGA375100m
Croft Mid-Size Skeleton100m
MSRP
SBGA375$5,600
Croft Mid-Size Skeleton$425

Full specifications

Case

5 specs
Category
Dress
Field
Thickness
12.5mm
14mm
Lug-to-Lug
46.2mm
47mm
Lug Width
19mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Dollar Diver

Movement

3 specs
Caliber
9R65
SII NH38A
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$5,600
$425

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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 SBGA375

Grand Seiko SBGA375 owners praise its classic, subtle design and the engineering of its Spring Drive movement, with one noting it "does not fail to deliver what they are known for." The dial offers good legibility, with polished side bevels on the hour markers catching light well. However, one owner scuffed the bezel within a week, and another questioned if a lug was missing. Overall, owners rate the Grand Seiko SBGA375 highly for its refined design and movement engineering, signaling discerning taste.

From video reviewers

The Spring Drive movement's smooth sweep is a key strength. The bracelet's taper and clasp were cited as areas for improvement.

Spinnaker Croft Mid-Size Skeleton

The Spinnaker Croft Mid-Size Skeleton is noted for its 40mm steel case, sapphire crystal, and 150m water resistance. One owner reports strong performance from the TMI NH70 movement at -3 seconds per day, with very nice lume. On balance, owners find the Spinnaker Croft Mid-Size Skeleton to be a pretty nice option, particularly for its movement performance and lume.

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