Side by side

Studio Underd0g Full MoonvsGruppo Gamma Field III GMT

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

Full Moon
Studio Underd0gFull Moon
MSRP $800
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

14 of 29 specs differ
Diameter
Full Moon39.5mm
Field III GMT40mm
Power Reserve
Full Moon40h
Field III GMT41h
Water Resistance
Full Moon
Field III GMT200m
MSRP
Full Moon$800
Field III GMT$459

Full specifications

Case

6 specs
Category
Casual
GMT
Diameter
39.5mm
40mm
Thickness
14mm
Lug-to-Lug
48.5mm
Lug Width
22mm
Water Resistance
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Standard
Black
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Seiko Instruments NH38A
Type
Manual
Automatic
Power Reserve
40h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$800
$459

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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.

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.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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