Side by side

Hamilton Khaki Aviation X-Wind Day Date AutovsSeiko Prospex Land Mechanical

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 X-Wind Day Date Auto

Owners widely praise the Hamilton Khaki Aviation X-Wind Day Date Auto for its value, technical aesthetic, and versatile wearability with straps. Reviewers and owners alike highlight its excellent legibility, bold Arabic numerals, and the appeal of its pilot watch design, with many appreciating the 80-hour power reserve. Some owners find the crosswind calculation functions unnecessary, and there are mixed views on the dial's font usage and color matching. Lume is frequently noted as weak, and some find the size large or the left-handed crown and pusher setup uncomfortable. Accuracy figures range from gaining 6 seconds in a few days to approximately -6 seconds per day. Overall, owners rate the Hamilton Khaki Aviation X-Wind Day Date Auto highly for its impressive value and functional pilot watch design.

From video reviewers

The H-21 movement's 60-hour power reserve is a notable strength. The large 44mm case size was mentioned as a potential drawback.

Seiko Prospex Land Mechanical

Owners widely praise the Seiko Prospex Land Mechanical for its unique style, useful day-date complication, and value, with some finding it suitable as a one-watch-for-all-occasions. Accuracy and durability are noted as strengths, with one owner reporting good performance even in water submersion. However, multiple owners criticize its size, with figures around 41mm to 43mm and 14.4mm thickness being flagged as too large and thick for smaller wrists. The Hardlex crystal and a potentially loose inner compass bezel are also points of criticism. On balance, owners rate the Seiko Prospex Land Mechanical highly for its unique style and value, despite concerns over its substantial dimensions.

At a glance

13 of 29 specs differ
Diameter
Khaki Aviation X-Wind Day Date Auto45mm
Prospex Land Mechanical39.5mm
Power Reserve
Khaki Aviation X-Wind Day Date Auto80h
Prospex Land Mechanical72h
Water Resistance
Khaki Aviation X-Wind Day Date Auto100m
Prospex Land Mechanical200m
MSRP
Khaki Aviation X-Wind Day Date Auto$1,375
Prospex Land Mechanical$995

Full specifications

Case

6 specs
Category
Pilot
Field
Diameter
45mm
39.5mm
Thickness
12.8mm
12.7mm
Lug-to-Lug
54mm
46.4mm
Lug Width
22mm
20mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Green
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
H-30
6R55
Power Reserve
80h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$1,375
$995
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Hamilton Khaki Aviation X-Wind Day Date Auto vs Seiko Prospex Land Mechanical gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.