Side by side

Hamilton Khaki Aviation Pilot PioneervsGruppo Gamma Field III GMT Date

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Hamilton Khaki Aviation Pilot Pioneer

Owners widely praise the Hamilton Khaki Aviation Pilot Pioneer for its authentic pilot design, legible cathedral hands, and textured matte black dial, with the 36mm and 38mm case sizes noted as wearing well. The applied numerals with generous Super Luminova are a highlight, and one owner found the double AR-coated mineral crystal surprisingly scratch-free. However, the lume is not very bright or long-lasting, and the mechanical version requires about 60 crown turns to fully wind. Some owners find the rotating bezel's detents unremarkable, and the mineral crystal can scratch more easily than sapphire, though this is considered a minor drawback given the price. On balance, owners rate the Hamilton Khaki Aviation Pilot Pioneer highly for its vintage appeal and quality build at the price point.

Gruppo Gamma Field III GMT Date

Owners widely praise the Gruppo Gamma Field III GMT Date for its awesome looks, quality, and good value. The watch features a 40mm brushed 316L stainless steel case, box sapphire crystal, and 200m water resistance, powered by a Seiko NH34A movement. Some reviewers note the NH34A movement's accuracy can range from -20~+40 seconds per day, though one reviewer reported +5 seconds per day with a regulated movement. The dial's dense layout with Arabic numerals can be overwhelming for some, and one owner found the size unsuitable for smaller wrists. On balance, owners rate the Gruppo Gamma Field III GMT Date highly for its impressive finishing and toolish design at its price point.

At a glance

12 of 29 specs differ
Diameter
Khaki Aviation Pilot Pioneer38mm
Field III GMT Date40mm
Power Reserve
Khaki Aviation Pilot Pioneer80h
Field III GMT Date41h
Water Resistance
Khaki Aviation Pilot Pioneer100m
Field III GMT Date200m
MSRP
Khaki Aviation Pilot Pioneer$1,095
Field III GMT Date$459

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
38mm
40mm
Thickness
11.4mm
14mm
Lug-to-Lug
0mm
48.5mm
Lug Width
18mm
22mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Yes
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
H-10
Seiko Instruments NH38A
Power Reserve
80h
41h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$1,095
$459
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