Side by side

Hamilton Khaki Aviation Air Race AutovsZelos Helica

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

Khaki Aviation Air Race Auto
HamiltonKhaki Aviation Air Race Auto
MSRP $845
Helica
ZelosHelica
MSRP $499

At a glance

11 of 29 specs differ
Diameter
Khaki Aviation Air Race Auto38mm
Helica39mm
Power Reserve
Khaki Aviation Air Race Auto80h
Helica40h
Water Resistance
Khaki Aviation Air Race Auto50m
Helica100m
MSRP
Khaki Aviation Air Race Auto$845
Helica$499

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
38mm
39mm
Thickness
10.8mm
10.5mm
Lug-to-Lug
46mm
39mm
Lug Width
19mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Black
39 - Wave MOP

Movement

2 specs
Caliber
H-10
Miyota 9015
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$845
$499

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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.

Hamilton Khaki Aviation Air Race Auto

Owners widely praise the Hamilton Khaki Aviation Air Race Auto for its legibility and practicality, with some appreciating its countdown bezel and GMT pointer. However, opinions on its design are split, with some calling it a "Frankenstein" and disliking the skeleton hands, while others find the hands suitable for a pilot watch. One owner notes the lume is underwhelming and the 44mm size may be too large for some wrists. The original strap is also described as uncomfortable and prone to water stains. On balance, owners value the Hamilton Khaki Aviation Air Race Auto for its legibility and practical features, despite a polarizing design and some comfort concerns.

Zelos Helica

Owners widely praise the Zelos Helica for its stunning, often color-shifting dials, with specific mentions of the MoP, slate grey, 'Steel Blue', and red opal variants being particularly captivating and artful. The 39mm case size is noted as fitting well on smaller wrists, and the overall build quality and finishing for the price are frequently highlighted as impressive, with one owner calling it "a lot of watch for the price." Some owners appreciate the novel bracelet designs and full lume dials, while others find the bracelet and clasp edges sharp or the clasp lacking on-the-fly adjustment. Opinions on the date window are mixed, with one owner disliking it. The Zelos Helica Moonphase was considered cluttered by one owner, and its $1K USD price point was felt to be steep by another, though popular variants sold out rapidly. Overall, owners rate the Zelos Helica highly for its striking dial designs and impressive value proposition.

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