Hamilton American Classic Intra-Matic Auto ChronovsKnot Watches CC-39ABK

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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.

American Classic Intra-Matic Auto Chrono

CC-39ABK
Diameter
40mm
39mm
Thickness
14.4mm
9mm
lowest
Water Resistance
100m
highest
30m
Power Reserve
60h
n/a
MSRP
$2,645
$188
lowest
Movement
Hamilton H-31
Seiko YM91
Case
5 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Hamilton American Classic Intra-Matic Auto Chrono for its attractive panda dial, retro design, and value, with many noting its historical significance and ability to garner compliments. Reviewers and owners alike highlight its clean, athletic aesthetic and vintage charm, with some finding it wears well and fits comfortably under dress shirts, even on smaller wrists. However, multiple sources flag its substantial thickness, ranging from 14.35mm to 14.7mm, and one owner noted the H-31 movement's rotor felt unusually spinny and the date-set button recessed. Accuracy figures vary, with one owner reporting +8 seconds per day and another +3 seconds per day. The included leather strap is frequently described as showing creasing easily or being merely utilitarian, leading some owners to explore aftermarket bracelet options.
The panda dial's contrasting subdials are a notable strength. The bracelet clasp is considered less refined than the rest of the watch.
Knot Watches Knot Timepiece CC-39ABK owners praise its Bauhaus-style design and attractive price point, with one owner calling it an awesome chronograph for $35 USD and another noting Seiko-like finishing. The blue dial is described as captivating, and the watch is appreciated for its Japanese origin and exclusivity. Owners find it very light with a soft, ready-to-wear leather strap, and value the ability to customize the face and strap. One owner reported disappointment with the strap and engraving quality, while another noted the lugs are a little thick, possibly due to the interchangeable strap system. Overall, owners rate the Knot Watches Knot Timepiece CC-39ABK highly for its aesthetic appeal and value.
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