Side by side

Hamilton Khaki Aviation Day Date AutovsSeiko 5 Sports SKX series

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

Khaki Aviation Day Date Auto
HamiltonKhaki Aviation Day Date Auto
MSRP $1,125
5 Sports SKX series
Seiko5 Sports SKX series
MSRP $315

At a glance

11 of 29 specs differ
Diameter
Khaki Aviation Day Date Auto42mm
5 Sports SKX series28mm
Power Reserve
Khaki Aviation Day Date Auto80h
5 Sports SKX series40h
Water Resistance
Khaki Aviation Day Date Auto100m
5 Sports SKX series100m
MSRP
Khaki Aviation Day Date Auto$1,125
5 Sports SKX series$315

Full specifications

Case

5 specs
Category
Pilot
Sport
Diameter
42mm
28mm
Thickness
12.15mm
11.2mm
Lug-to-Lug
46mm
33.1mm
Lug Width
20mm
14mm

Crystal & Dial

2 specs
Crystal
Sapphire
Hardlex
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
H-40
2R06
Power Reserve
80h
40h
Jewels
25
21

Pricing

1 specs
MSRP
$1,125
$315

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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 Day Date Auto

Owners and reviewers widely praise the Hamilton Khaki Aviation Day Date Auto for its handsome, legible dial with raised indices and day/date complications, and its versatile, modern pilot watch design. The fully brushed case and good lume are noted strengths, with one owner finding it wears comfortably on a NATO strap. The H-10 caliber offers an 80-hour power reserve, though its decoration and regulation are less refined. Some find the 42mm size large and the skeletonized hour hand tip visually unappealing, while others note the AR coating is decent but not exceptional. Overall, owners and reviewers rate the Hamilton Khaki Aviation Day Date Auto highly for its practical design and value at its price point.

Seiko 5 Sports SKX series

Owners widely praise the Seiko 5 Sports SKX series for its iconic dive watch design, robust build, and excellent value, with many appreciating its timeless styling and tool-like character. The movement, while basic, is noted as offering hacking and hand-winding capabilities, and accuracy varies, with many owners reporting +/-5 to 10 seconds per day despite the movement's potential for +/-40 seconds. Some owners find the original SKX models heavier and bulkier than newer iterations, while others critique the lack of a screw-down crown and ISO rating on the newer Seiko 5 Sports SKX series, deeming it less of a serious tool watch. Overall, owners rate the Seiko 5 Sports SKX series highly for its enduring design and value proposition as a robust, everyday watch.

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