Hamilton Khaki Aviation X-Wind Auto chronovsLIV Watches P-51

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Hamilton Khaki Aviation X-Wind Auto chrono at true scale

Khaki Aviation X-Wind Auto chrono

LIV Watches P-51 at true scale

P-51

Diameter

44mm

42.8mm

Lug-to-Lug

55mm

50mm

lowest

Thickness

15.6mm

15mm

lowest

Water Resistance

100m

100m

Power Reserve

60h

highest

12h

MSRP

$2,095

lowest

$2,150

Movement

Hamilton H-21

Valjoux 7750

Case

4 specs
Diameter
44mm
42.8mm
Thickness
15.6mm
15mm
Lug-to-Lug
55mm
50mm
Material
Stainless Steel
Titanium

Crystal & Dial

1 specs
Dial Color
Blue
n/a

Movement

2 specs
Caliber
Hamilton H-21
Valjoux 7750
Power Reserve
60h
12h

Pricing

1 specs
MSRP
$2,095
$2,150
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Hamilton Khaki Aviation X-Wind Auto chrono

Owners widely praise the Hamilton Khaki Aviation X-Wind Auto chrono for its good quality and versatility with straps at its price point. Reviewers highlight its unique drift angle calculator function as a horological curio and legitimate navigational tool, contributing to its anachronistic appeal. Some owners find the busy dial and left-handed crown and pusher setup unusual, and one owner notes it is a heavy watch. The lume could be stronger, and one owner states the watch will not retain value. Overall, owners and reviewers rate the Hamilton Khaki Aviation X-Wind Auto chrono highly for its unique functionality and build quality for the price.

LIV Watches P-51

Owners widely praise the LIV Watches P-51 for its excellent build quality, attention to detail, and appealing pilot-watch design, noting its impressive legibility with BGW9 lume and AR-coated crystal. One owner specifically highlights the attractive blue dial with orange accents and the titanium and matte ceramic construction. The Valjoux 7750 movement is regulated to +/- 4 seconds per day, and the watch features 100m water resistance and a ceramic bezel. However, some owners find the price, ranging from $750 to $1931AUD, to be high compared to other Valjoux 775X chronograph options. One owner expressed concern regarding lume performance, citing previous discussions about LIV watches. On balance, owners and reviewers rate the LIV Watches P-51 highly for its construction quality and finishing at the price point.

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