Side by side

Hamilton Jazzmaster Seaview AutovsFormex Reef 42 mm

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

Jazzmaster Seaview Auto
HamiltonJazzmaster Seaview Auto
MSRP $945
Reef 42 mm
FormexReef 42 mm
MSRP $2,414
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 Seaview Auto

Owners widely praise the Hamilton Jazzmaster Seaview Auto for its attractive design and comfortable wearability when paired with aftermarket straps like sailcloth. Accuracy varies, with one owner reporting gains of 15 seconds per day after seven years of wear, which improved to +/- 4 seconds per day after servicing and case replacement. Another user noted finish issues after minimal wear, questioning the material quality. The Hamilton Jazzmaster Seaview Auto is available with a 45mm stainless steel case, sapphire crystal, 300m water resistance, and an ETA 2824-2 movement, with prices around $500. On balance, owners value the Hamilton Jazzmaster Seaview Auto for its aesthetic appeal and strap versatility, though material durability can be a concern for some.

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

11 of 29 specs differ
Diameter
Jazzmaster Seaview Auto37mm
Reef 42 mm42mm
Power Reserve
Jazzmaster Seaview Auto42h
Reef 42 mm56h
Water Resistance
Jazzmaster Seaview Auto100m
Reef 42 mm300m
MSRP
Jazzmaster Seaview Auto$945
Reef 42 mm$2,414

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
37mm
42mm
Thickness
11.3mm
11.4mm
Lug-to-Lug
46mm
47mm
Lug Width
18mm
22mm
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
White
Black
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
2824-2
Sellita SW300-1
Power Reserve
42h
56h

Pricing

1 specs
MSRP
$945
$2,414
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