Duckworth Prestex Valjoux 7750vsHamilton Jazzmaster Auto Chrono

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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.

Valjoux 7750

Jazzmaster Auto Chrono
Diameter
43mm
42mm
Thickness
14.5mm
lowest
15.2mm
Water Resistance
30m
100m
highest
Power Reserve
48h
60h
highest
MSRP
$4,950
$2,095
lowest
Movement
Valjoux 7750
Hamilton H-21
Case
3 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 Duckworth Prestex VALJOUX 7750 for its superb pusher and crown precision, with the Valjoux 7750 movement noted for its toughness, reliability, and ease of service. One owner reports feeling the rotor's movement, comparing it to other watches. The Duckworth Prestex VALJOUX 7750 is noted as being fairly thick. Overall, owners and reviewers rate the Duckworth Prestex VALJOUX 7750 highly for the reliable and serviceable Valjoux 7750 movement.
Owners widely praise the Hamilton Jazzmaster Auto Chrono for its excellent value and substantial, dressy appearance, with many noting its superior quality and finish compared to other brands. The H-21 movement offers a 60-hour power reserve, though its thickness makes the watch unsuitable for those seeking a slim profile. Some owners express a preference for a 3-6-9 subdial layout or a smaller case size. On balance, owners rate the Hamilton Jazzmaster Auto Chrono highly for its strong value proposition and appealing aesthetic.
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