Side by side

Dryden Chrono Diver Series 1vsFormex Reef 39.5 mm

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

Chrono Diver Series 1
DrydenChrono Diver Series 1
MSRP $349
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

12 of 29 specs differ
Diameter
Chrono Diver Series 142mm
Reef 39.5 mm39.5mm
Power Reserve
Chrono Diver Series 140h
Reef 39.5 mm56h
Water Resistance
Chrono Diver Series 1101m
Reef 39.5 mm300m
MSRP
Chrono Diver Series 1$349
Reef 39.5 mm$2,230

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
42mm
39.5mm
Thickness
13.5mm
11mm
Lug-to-Lug
49mm
45.5mm
Water Resistance
101m
300m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Steel
Bahama Blue
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW300-1
Type
Quartz
Automatic
Power Reserve
40h
56h

Pricing

1 specs
MSRP
$349
$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.

Dryden Chrono Diver Series 1

The Dryden Chrono Diver Series 1 is a 42mm mechaquartz chronograph featuring a dual-curved sapphire crystal and 100m water resistance. Owners note the VK63 movement's characteristic chronograph hand not resetting perfectly to zero, a trait present on this specific watch. The case exhibits polished chamfers on the upper lugs, and it utilizes Swiss Superluminova BGW9. On balance, owners appreciate the classic case shape and dial design of the Dryden Chrono Diver Series 1 at its price point, despite the mechaquartz movement's known reset behavior.

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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