Side by side

Grand Seiko SLGB023vsSpinnaker Hass Automatic

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

SLGB023
Grand SeikoSLGB023
MSRP $12,400
Hass Automatic
SpinnakerHass Automatic
MSRP $445

At a glance

11 of 29 specs differ
Diameter
SLGB02340.8mm
Hass Automatic43mm
Power Reserve
SLGB02372h
Hass Automatic40h
Water Resistance
SLGB023300m
Hass Automatic300m
MSRP
SLGB023$12,400
Hass Automatic$445

Full specifications

Case

5 specs
Diameter
40.8mm
43mm
Thickness
12.9mm
16.5mm
Lug-to-Lug
48.5mm
50mm
Lug Width
21mm
22mm
Material
Titanium
316L Stainless Steel

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Flying Dutchman

Movement

3 specs
Caliber
9RB1
SII NH35A
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 Hass Automatic

The Spinnaker Hass Automatic is a 43mm watch featuring an NH35 movement and sapphire crystal, with owners highlighting its beautiful dial. Some find Spinnaker watches, including this model, to be on the thicker side, with one owner describing the Hass X MCS Blue Fade variant as comically large and chunky. The Spinnaker Hass Automatic was offered at $445 USD as part of a special collection with customized elements, and a limited edition of 200 pieces was also available for $195 shipped. On balance, owners and reviewers note the attractive dial as a key positive, though some express reservations about the watch's thickness.

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