Side by side

Hamilton Khaki Aviation Air Race AutovsSeiko 5KX

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 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.

Seiko 5KX

Owners widely praise the Seiko 5 Sports SKX series for its strong lume and comfortable wearability, with many noting its compact feel due to a short lug-to-lug length. The NH36 movement's accuracy varies, with typical performance between +/-5 to 10 seconds per day, though some report better. A lack of screw-down crown and ISO certification are noted drawbacks for its water resistance. Some owners find the bracelet to be of cheaper construction with hollow links, and a few have reported quality control issues. The consensus is that the Seiko 5 Sports SKX series offers good value for its price, appealing to those who appreciate its tool-like nature and iconic lineage.

At a glance

13 of 29 specs differ
Diameter
Khaki Aviation Air Race Auto38mm
5KX42.5mm
Power Reserve
Khaki Aviation Air Race Auto80h
5KX41h
Water Resistance
Khaki Aviation Air Race Auto50m
5KX100m
MSRP
Khaki Aviation Air Race Auto$845
5KX$350

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
38mm
42.5mm
Thickness
10.8mm
13.4mm
Lug-to-Lug
0mm
46mm
Lug Width
19mm
22mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
H-10
4R36
Power Reserve
80h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$845
$350
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