Side by side

Hamilton Jazzmaster Regulator CinemavsFormex Reef 39.5 mm

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Jazzmaster Regulator Cinema
HamiltonJazzmaster Regulator Cinema
MSRP $1,475
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Regulator Cinema42mm
Reef 39.5 mm39.5mm
Power Reserve
Jazzmaster Regulator Cinema40h
Reef 39.5 mm56h
Water Resistance
Jazzmaster Regulator Cinema50m
Reef 39.5 mm300m
MSRP
Jazzmaster Regulator Cinema$1,475
Reef 39.5 mm$2,230

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
42mm
39.5mm
Thickness
12.83mm
11mm
Lug-to-Lug
46mm
45.5mm
Water Resistance
50m
300m

Crystal & Dial

2 specs
Dial Color
Black
Bahama Blue
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
H-12
Sellita SW300-1
Power Reserve
40h
56h

Pricing

1 specs
MSRP
$1,475
$2,230

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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 Regulator Cinema

The Hamilton Jazzmaster is widely praised for its value and refined design, with specific models highlighted for sophisticated skeletonization and minimalist aesthetics. Owners appreciate elegant dial work, such as the "spiky H" logo on the Skeleton or the open-heart design on other variants, and the slim profile of the Thinline Automatic is frequently noted. The Calibre H-10-S movement is recognized for its substantial 80-hour power reserve. However, opinions vary on the practicality of open-heart designs, with some finding them gimmicky or impacting legibility, particularly as wearers age. Accuracy figures reported by owners range from 2-3 seconds fast per day to less precise performance, and repair costs can be a consideration. Overall, owners and reviewers value the Hamilton Jazzmaster for its attractive design and accessible price point, with specific models offering unique aesthetic appeals.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

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