Hamilton American Classic Intra-Matic Auto ChronovsLebois & Co Sector Chronograph

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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 American Classic Intra-Matic Auto Chrono at true scale

American Classic Intra-Matic Auto Chrono

Lebois & Co Sector Chronograph at true scale

Sector Chronograph

Diameter

40mm

39mm

Lug-to-Lug

n/a

47.4mm

Thickness

14.4mm

13.9mm

lowest

Water Resistance

100m

highest

50m

Power Reserve

60h

60h

MSRP

$2,645

lowest

$4,448

Movement

Hamilton H-31

LC-450

Case

4 specs
Diameter
40mm
39mm
Thickness
14.45mm
13.9mm
Lug-to-Lug
n/a
47.35mm
Water Resistance
100m
50m

Crystal & Dial

1 specs
Dial Color
White
n/a

Movement

2 specs
Caliber
Hamilton H-31
LC-450
Type
Automatic
Manual

Pricing

1 specs
MSRP
$2,645
$4,448
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Reviews

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

Hamilton American Classic Intra-Matic Auto Chrono

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.

From video reviewers

The panda dial's contrasting subdials are a notable strength. The bracelet clasp is considered less refined than the rest of the watch.

Lebois & Co Sector Chronograph

The Lebois & Co Sector Chronograph Aventurine 324.444 is praised for its exceptional case finishing, with details like matching pushers and a distinct lug-to-bezel step, and its well-proportioned 39mm case that sits nicely on the wrist. Reviewers highlight the striking aventurine dial and the elegant chronograph pushers, alongside the nicely finished manual-wind LC-450 movement. Some owners note the AUD$4500 price tag represents a significant risk for an online purchase. Overall, owners and reviewers rate the Lebois & Co Sector Chronograph Aventurine 324.444 highly for its vintage charm and superior case finishing at its price point.

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