Side by side

Grand Seiko SLGB023vsSpinnaker Cahill Automatic

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

SLGB023
Grand SeikoSLGB023
MSRP $12,400
Cahill Automatic
SpinnakerCahill Automatic
MSRP $350

At a glance

12 of 29 specs differ
Diameter
SLGB02340.8mm
Cahill Automatic42mm
Power Reserve
SLGB02372h
Cahill Automatic40h
Water Resistance
SLGB023300m
Cahill Automatic200m
MSRP
SLGB023$12,400
Cahill Automatic$350

Full specifications

Case

6 specs
Diameter
40.8mm
42mm
Thickness
12.9mm
13.7mm
Lug-to-Lug
48.5mm
51mm
Lug Width
21mm
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Green

Movement

3 specs
Caliber
9RB1
SII NH35A
Type
Spring Drive
Automatic
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$12,400
$350

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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 Cahill Automatic

Owners widely praise the Spinnaker Cahill Automatic for its attractive vintage-inspired design, comfortable wearability on smaller wrists, and good timekeeping, with one owner specifically noting the large "maxi" indices and NATO strap as highlights. However, some find the lume application uneven and note the use of a mineral crystal. A significant concern raised by one owner is a report of internal component failures and a perceived lack of quality control within the brand. On balance, the Spinnaker Cahill Automatic is well-regarded by owners for its style and value, particularly at specific price points, despite some noted manufacturing inconsistencies.

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