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Hamilton Jazzmaster Auto ChronovsFormex Reef 42 mm

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What people say

Owners + reviewers, side by side

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

Hamilton Jazzmaster Auto Chrono

Owners widely praise the Hamilton Jazzmaster Auto Chrono for its excellent value, blend of classy and sporty design, and detailed dial with applied markers. The watch is noted for its impressive accuracy, with figures ranging from +0.5 to +3 seconds per day. Its 42mm case is described as a classic size with a mix of polished and brushed finishes, and the reverse panda dial is a particular highlight for some. However, the lume is consistently criticized as fading quickly and being underwhelming, and the internal bezel's functionality is found to be cumbersome. One owner found the watch too formal for their needs, while another noted the square case can wear larger than some alternatives. Overall, owners rate the Hamilton Jazzmaster Auto Chrono highly for its exceptional value and attractive, accurate timekeeping.

From video reviewers

The watch features a quality automatic chronograph movement. The date setting mechanism, requiring a specialized pusher tool, is a notable drawback. Reviewers disagreed on whether the watch competes effectively with luxury alternatives at its price point.

Formex Reef 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

At a glance

8 of 29 specs differ
Diameter
Jazzmaster Auto Chrono42mm
Reef 42 mm42mm
Power Reserve
Jazzmaster Auto Chrono60h
Reef 42 mm56h
Water Resistance
Jazzmaster Auto Chrono100m
Reef 42 mm300m
MSRP
Jazzmaster Auto Chrono$1,845
Reef 42 mm$2,414

Full specifications

Case

4 specs
Category
Chronograph
Diver
Thickness
14.83mm
11.4mm
Lug-to-Lug
0mm
47mm
Water Resistance
100m
300m

Crystal & Dial

1 specs
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Hamilton H-31
Sellita SW300-1
Power Reserve
60h
56h

Pricing

1 specs
MSRP
$1,845
$2,414
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