Hamilton Jazzmaster Auto ChronovsZelos ZX-4 Mechaquartz 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.

Jazzmaster Auto Chrono

ZX-4 Mechaquartz Chronograph
Diameter
42mm
43mm
Lug-to-Lug
n/a
49mm
Thickness
15.2mm
lowest
16mm
Water Resistance
100m
100m
Power Reserve
60h
n/a
MSRP
$2,095
$549
lowest
Movement
Hamilton H-21
Valjoux 7750
Case
5 specsCrystal & Dial
2 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 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.
Owners widely praise the Zelos ZX-4 Mechaquartz Chronograph for its value, noting its mechaquartz movement that combines quartz accuracy with a mechanical chronograph function, and its instant mechanical reset. The watch features a 43mm case with a 47mm lug-to-lug measurement and a 16mm height, arriving with a four-watch pouch and two distressed leather straps. Some owners clarify that while the reset is mechanical, the chronograph function is powered by a stepper motor, not a fully mechanical chronograph. Overall, owners rate the Zelos ZX-4 Mechaquartz Chronograph highly for its accessible price point and the functional blend of quartz and mechanical elements in its chronograph.
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