Hamilton Jazzmaster Day Date AutovsKnot Watches AT-38


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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.

Jazzmaster Day Date Auto

AT-38
Diameter
40mm
38mm
Thickness
11.5mm
10mm
lowest
Water Resistance
50m
50m
Power Reserve
80h
highest
45h
MSRP
$1,045
$444
lowest
Movement
Hamilton H-40
Miyota 9015
Case
4 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Hamilton Jazzmaster Day Date Auto for its versatility as an everyday and business-casual timepiece, with some questioning its suitability for formal wear. One owner selected it as an engagement gift, viewing it as a strong foundation for a watch collection, while another found it to be the best-fitting option after trying several watches. The Hamilton Jazzmaster Day Date Auto is also noted for offering great value for money. Overall, owners rate the Hamilton Jazzmaster Day Date Auto highly for its versatility and perceived value.
The watch offers excellent build quality for its price point, with an 80-hour power reserve from the H-40 movement. The 50-meter water resistance is a limitation. Reviewers disagreed on the aesthetic appeal of the date window at 6 o'clock.
Knot Watches Knot AT-38 owners praise its 38mm case size, 10mm case height, and 45mm lug-to-lug as fitting perfectly on smaller wrists, with one owner finding it surprisingly light and comfortable. The multi-layered Urushi lacquer dial, featuring gold applied via scraping, is described as stunning in person and a key aesthetic appeal, while the Miyota 9015 movement is considered good. Some owners note that Knot straps are too short for larger wrists and the strap width is slightly smaller than standard, preventing the use of preferred aftermarket options. On balance, owners rate the Knot Watches Knot AT-38 highly for its comfortable dimensions and the striking dial design at its price point.
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