Side by side

Grand Seiko SLGW005vsStudio Underd0g Full Moon

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

SLGW005
Grand SeikoSLGW005
MSRP $9,700
Full Moon
Studio Underd0gFull Moon
MSRP $800

At a glance

11 of 29 specs differ
Diameter
SLGW00538.8mm
Full Moon39.5mm
Power Reserve
SLGW00580h
Full Moon40h
Water Resistance
SLGW00530m
Full Moon
MSRP
SLGW005$9,700
Full Moon$800

Full specifications

Case

6 specs
Category
Dress
Casual
Diameter
38.8mm
39.5mm
Thickness
10.4mm
Lug-to-Lug
43.7mm
Lug Width
19mm
Water Resistance
30m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Standard

Movement

2 specs
Caliber
9SA4
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$9,700
$800

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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 SLGW005

The Grand Seiko SLGW005 is lauded for its faithful recreation of the 1968 45GS, featuring a desirable double-signed dial and a beautifully finished case adhering to the Grammar of Design. It is powered by the new 9SA4 manual-winding, high-beat movement, offering an 80-hour power reserve and a mean daily rate of -3/+5 seconds. Owners consider it a "gloriously perfect" and "pure and elegant expression" of Grand Seiko's strengths, with one owner preferring its creamy dial over a more pronounced beige found on other models. Overall, owners and reviewers rate the Grand Seiko SLGW005 highly for its elegant design and impressive high-beat movement.

Studio Underd0g Full Moon

Owners widely praise the Studio Underd0g Full Moon's harmonious creamy dial and its 37mm case, which fits flawlessly. The innovative sapphire disc with numerals is a highlight, though two visible screws holding it are noted as a minor aesthetic drawback. Some owners find the watch overpriced, while others see value in the upgraded Sellita movement under $1k. Lume is surprisingly good, and the included NATO strap is preferred by some over the leather. Accuracy ranges from +1/+2 seconds per day to about -6 seconds per day. On balance, owners rate the Studio Underd0g Full Moon highly for its versatile dial and well-fitting case at the price point.

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