Side by side

Grand Seiko STGK031vsWolbrook Skindiver II Automatic

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

STGK031
Grand SeikoSTGK031
MSRP $6,600
Skindiver II Automatic
WolbrookSkindiver II Automatic
MSRP $579

At a glance

12 of 29 specs differ
Diameter
STGK03130mm
Skindiver II Automatic40mm
Power Reserve
STGK03150h
Skindiver II Automatic40h
Water Resistance
STGK031100m
Skindiver II Automatic200m
MSRP
STGK031$6,600
Skindiver II Automatic$579

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
30mm
40mm
Thickness
10.5mm
12.7mm
Lug-to-Lug
36.2mm
Lug Width
15mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner

Movement

2 specs
Caliber
9S27
Miyota 9015
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$6,600
$579

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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 STGK031

Grand Seiko STGK031 owners widely praise its subtle, light pink dial that shifts to appear white or silver depending on lighting, its refined 30mm case size, and its simple elegance. Some find the 30mm sizing perfect for wearability, with one owner noting it is ideal for those who find 38mm watches too large. The Zaratsu polishing is also a noted strength. However, the Calibre 9S27 movement has a 50-hour power reserve and an accuracy range of +8 to -3 seconds per day, which some consider modest for the price. On balance, owners and reviewers rate the Grand Seiko STGK031 highly for its versatile dial and refined 30mm case.

From video reviewers

The 50-hour power reserve of the Calibre 9S27 movement is a shared strength. The 36mm lug-to-lug measurement is a weakness. Reviewers disagreed on the premium feel of the polished stainless steel case and bracelet compared to Zaratsu polishing.

Wolbrook Skindiver II Automatic

Owners widely praise the Wolbrook Skindiver II Automatic for its retro aesthetic, comfortable 40mm wearability, and legible dial with faux patina, with the brushed finish, drilled lugs, and included Beads of Rice bracelet and tropic strap being highlighted. The watch features a Citizen/Miyota 8315 movement, adjusted in France to ±15 seconds per day, offering a 60-hour power reserve and 200m water resistance with a box sapphire crystal. Some owners note the 20mm strap size as potentially problematic, and Wolbrook's policy of not honoring the warranty on resold watches is a significant criticism. On balance, owners and reviewers rate the Wolbrook Skindiver II Automatic highly for its compelling retro design and solid build at its price point.

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