Side by side

Grand Seiko SLGA015vsSpinnaker Hull Diver

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

SLGA015
Grand SeikoSLGA015
MSRP $12,600
Hull Diver
SpinnakerHull Diver
MSRP $375

At a glance

12 of 29 specs differ
Diameter
SLGA01543.8mm
Hull Diver42mm
Power Reserve
SLGA015120h
Hull Diver40h
Water Resistance
SLGA015200m
Hull Diver300m
MSRP
SLGA015$12,600
Hull Diver$375

Full specifications

Case

6 specs
Diameter
43.8mm
42mm
Thickness
13.8mm
15mm
Lug-to-Lug
51.5mm
47.5mm
Lug Width
23mm
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Green

Movement

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

Pricing

1 specs
MSRP
$12,600
$375

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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 SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

Spinnaker Hull Diver

The Spinnaker Hull Diver is widely praised for its excellent build quality, featuring a milled clasp, solid links, and a strong anti-reflective coating on its sapphire crystal. Owners highlight its value, with one calling it one of their best affordable watches at $170, and appreciate the dual-part case construction that contributes to a reduced thickness. The blue dial is noted for its attractive play of light, and the screw-down crown is easy to operate. However, the lume is considered average, and some desire a higher beat movement. On balance, owners rate the Spinnaker Hull Diver highly for its robust construction and strong value proposition at its price point.

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