Side by side

Gruppo Gamma Field III GMTvsZelos Helica Moonphase

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

Field III GMT
Gruppo GammaField III GMT
MSRP $459
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

14 of 29 specs differ
Diameter
Field III GMT40mm
Helica Moonphase39mm
Power Reserve
Field III GMT41h
Helica Moonphase40h
Water Resistance
Field III GMT200m
Helica Moonphase100m
MSRP
Field III GMT$459
Helica Moonphase$1,049

Full specifications

Case

7 specs
Category
GMT
Moonphase
Diameter
40mm
39mm
Thickness
14mm
10mm
Lug-to-Lug
48.5mm
39mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko Instruments NH38A
Sellita SW288 Moonphase
Power Reserve
41h
40h
Complications
GMT
None

Pricing

1 specs
MSRP
$459
$1,049

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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.

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.

Zelos Helica Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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