Side by side

Hamilton American Classic Intra-Matic Chronograph HvsFormex Reef 42 mm

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

Reef 42 mm
FormexReef 42 mm
MSRP $2,414

At a glance

12 of 29 specs differ
Diameter
American Classic Intra-Matic Chronograph H40mm
Reef 42 mm42mm
Power Reserve
American Classic Intra-Matic Chronograph H60h
Reef 42 mm56h
Water Resistance
American Classic Intra-Matic Chronograph H100m
Reef 42 mm300m
MSRP
American Classic Intra-Matic Chronograph H$2,495
Reef 42 mm$2,414

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
40mm
42mm
Thickness
14.35mm
11.4mm
Lug-to-Lug
49mm
47mm
Lug Width
20mm
22mm
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
White
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
H-51
Sellita SW300-1
Type
Manual
Automatic
Power Reserve
60h
56h

Pricing

1 specs
MSRP
$2,495
$2,414

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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 American Classic Intra-Matic Chronograph H

The Hamilton American Classic Intra-Matic Chronograph H is widely praised for its attractive vintage-inspired design, clean dial legibility, and satisfying manual-wind experience. Owners and reviewers highlight its retro charm, often described as elegant and classy with a 1960s aesthetic, and its well-balanced panda or reverse panda dial configurations. The H-51 hand-wound movement is noted for its torquey feel and a 60-hour power reserve, with timekeeping reported around +3 seconds per day. The 40mm case size is considered welcome, though its 14.35mm thickness is frequently mentioned as being on the thicker side for a hand-wound chronograph, despite wearing well on the wrist. Some owners expressed a desire for a three-subdial layout, and one noted the OEM strap was utilitarian, while another found the rotor audible and the date setting unusual. The Hamilton American Classic Intra-Matic Chronograph H is priced around $2,045 to $2,095 on bracelet.

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.

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