Side by side

Zelos Hammerhead (Tantalum LE)vsGruppo Gamma Field III GMT

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

Hammerhead (Tantalum LE)
ZelosHammerhead (Tantalum LE)
MSRP $1,499
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

14 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
Field III GMT40mm
Power Reserve
Hammerhead (Tantalum LE)40h
Field III GMT41h
Water Resistance
Hammerhead (Tantalum LE)300m
Field III GMT200m
MSRP
Hammerhead (Tantalum LE)$1,499
Field III GMT$459

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
44mm
40mm
Thickness
13mm
14mm
Lug-to-Lug
44mm
48.5mm
Material
Titanium
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Tantalum LE
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Seiko NH35
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$1,499
$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.

Zelos Hammerhead (Tantalum LE)

The Zelos Hammerhead (Tantalum LE) features a forged carbon dial and bezel insert with infused lume. On balance, owners and reviewers rate the Zelos Hammerhead (Tantalum LE) highly for its unique material composition and substantial feel.

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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