Side by side

Christopher Ward The Twelve 660vsHamilton Khaki Aviation Pilot Pioneer Mechanical Chrono

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

The Twelve 660
Christopher WardThe Twelve 660
MSRP $2,035

At a glance

14 of 29 specs differ
Diameter
The Twelve 66043.3mm
Khaki Aviation Pilot Pioneer Mechanical Chrono40mm
Power Reserve
The Twelve 66045h
Khaki Aviation Pilot Pioneer Mechanical Chrono60h
Water Resistance
The Twelve 66030m
Khaki Aviation Pilot Pioneer Mechanical Chrono100m
MSRP
The Twelve 660$2,035
Khaki Aviation Pilot Pioneer Mechanical Chrono$2,445

Full specifications

Case

7 specs
Category
Pilot
Diameter
43.3mm
40mm
Thickness
6.6mm
14.35mm
Lug-to-Lug
43.3mm
46mm
Lug Width
23.3mm
22mm
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
30m
100m

Crystal & Dial

1 specs
Lume
C1
None

Movement

5 specs
Caliber
SW210
H-51-Si
Beat Rate
4 vph
28,800 vph
Power Reserve
45h
60h
Jewels
18
25
Complications
Moonphase
None

Pricing

1 specs
MSRP
$2,035
$2,445

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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.

Christopher Ward The Twelve 660

Christopher Ward The Twelve 660 owners widely appreciate its thin 6.6mm case, achieved partly by reducing bezel and caseback diameters, and its well-made construction and value proposition. However, the community is split on the manual wind and lack of a second hand, with some finding these features unnecessary while others enjoy the interaction and thinness they enable. The bracelet's butterfly clasp lacks micro-adjustments, and some find the 30m water resistance limiting. Overall, owners and reviewers rate Christopher Ward The Twelve 660 highly for its innovative thin case design and perceived value, despite differing opinions on its manual-wind-only, no-date configuration.

Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono

Owners and reviewers widely praise the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono for its authentic military design, attractive dial execution, and intriguing asymmetrical case, with many appreciating its utilitarian feel and vintage vibe. The hand-wound H-51-Si movement, offering a 60-hour power reserve and accuracy around +5 to +7 seconds per day, is also noted positively, as is the satisfying feel of manual winding. Some owners find the 36mm case size light and versatile, while others note it wears larger than its dimensions suggest. However, several sources point to the mineral crystal as a drawback compared to sapphire, and the lume is generally described as weak. The included strap is frequently criticized for being too long and uncomfortable, with many preferring it on a NATO strap. On balance, owners and reviewers rate the Hamilton Khaki Aviation Pilot Pioneer Mechanical Chrono highly for its compelling vintage military aesthetic and solid value proposition.

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