Side by side

Grand Seiko SLGA001vsSpinnaker Hull

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

SLGA001
Grand SeikoSLGA001
MSRP $11,100
Hull
SpinnakerHull
MSRP $159

At a glance

10 of 29 specs differ
Diameter
SLGA00146.9mm
Hull42mm
Power Reserve
SLGA001120h
Hull40h
Water Resistance
SLGA001100m
Hull100m
MSRP
SLGA001$11,100
Hull$159

Full specifications

Case

5 specs
Diameter
46.9mm
42mm
Thickness
16mm
15mm
Lug-to-Lug
50.8mm
47.5mm
Lug Width
23mm
22mm
Material
Titanium
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Black
Volcanic Black

Movement

3 specs
Caliber
9RA5
SII NH35A
Type
Spring Drive
Automatic
Power Reserve
120h
40h

Pricing

1 specs
MSRP
$11,100
$159

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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 SLGA001

The Grand Seiko SLGA001 is praised for its impressive technical achievements, including a new, slimmer Spring Drive movement with a five-day power reserve and exceptional accuracy of ±0.5 seconds per day. Reviewers note the 47mm titanium case, despite its substantial dimensions, wears more comfortably due to its titanium construction, short lugs, and virtually scratch-proof finish. The watch features a 600-meter water resistance and is limited to 700 pieces, priced at $11,100. On balance, reviewers consider the Grand Seiko SLGA001 a highly capable dive watch, with its technological advancements in the Spring Drive movement being a key highlight.

From video reviewers

The watch's Spring Drive movement, specifically the Cal.9RA5, offers a 120-hour power reserve. A notable trade-off is the watch's relatively large size, with a case diameter of 46.9mm and thickness of 16.0mm, which may not suit those with smaller wrists. The high price point may be a trade-off for some buyers.

Spinnaker Hull

The Spinnaker Hull is widely praised by owners for its textured or deep sandwich dials, bold cushion case design, and vintage charm, with one owner finding its jubilee bracelet superior to Seiko's. The meca-quartz movement is a common feature, and the watch offers 100m water resistance. However, the 24-hour subdial is considered functionally illogical and visually unappealing by one owner, and the mineral crystal is noted as a drawback compared to sapphire. On balance, owners rate the Spinnaker Hull highly for its significant style and value at its budget price point.

From video reviewers

The watch's lume is a strong point. Reviewers noted the absence of a sapphire crystal as a drawback.

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