Side by side

Hamilton Khaki Aviation Air Race AutovsOrient Helios

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
Helios
OrientHelios
MSRP $335

At a glance

17 of 29 specs differ
Diameter
Khaki Aviation Air Race Auto38mm
Helios40.5mm
Power Reserve
Khaki Aviation Air Race Auto80h
Helios40h
Water Resistance
Khaki Aviation Air Race Auto50m
Helios30m
MSRP
Khaki Aviation Air Race Auto$845
Helios$335

Full specifications

Case

7 specs
Category
Pilot
Diameter
38mm
40.5mm
Thickness
10.8mm
12mm
Lug-to-Lug
46mm
47mm
Lug Width
19mm
21mm
Water Resistance
50m
30m
Caseback
Solid
Display

Crystal & Dial

5 specs
Crystal
Sapphire
Mineral
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Green
Indices
Applied

Movement

4 specs
Caliber
H-10
FT622
Beat Rate
28,800 vph
21,600 vph
Power Reserve
80h
40h
Jewels
25
22

Pricing

1 specs
MSRP
$845
$335

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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.

Orient Helios

The Orient Helios is widely praised for its vibrant dial, open-heart design, and excellent value for money, with owners noting its great finish and quality that exceeds its price point. The watch is described as attractive and stylish, with a thin profile that wears comfortably, though some owners wish it were smaller. Accuracy figures vary, with one owner reporting it consistently runs 5-6 seconds fast per day, while another sees it at 1-2 seconds fast. Opinions are split on the inclusion of a date window, with some finding it desirable for practicality and aesthetic balance, while others prefer its absence. The stock bracelet receives mixed reviews, with one owner finding it awkward and upgrading to a strap, while another considers it nice with a smooth finish and solid links. Overall, owners rate the Orient Helios highly for its mesmerizing open-heart dial and impressive quality at an attainable price.

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