Side by side

Formex Reef 39.5 mmvsVaer Dirty Dozen (40mm)

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

Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230
Dirty Dozen (40mm)
VaerDirty Dozen (40mm)
MSRP $199

At a glance

13 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Dirty Dozen (40mm)36mm
Power Reserve
Reef 39.5 mm56h
Dirty Dozen (40mm)40h
Water Resistance
Reef 39.5 mm300m
Dirty Dozen (40mm)100m
MSRP
Reef 39.5 mm$2,230
Dirty Dozen (40mm)$199

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
39.5mm
36mm
Thickness
11mm
9.4mm
Lug-to-Lug
45.5mm
48mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Bahama Blue
40mm
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW300-1
Miyota 2035
Type
Automatic
Quartz
Power Reserve
56h
40h

Pricing

1 specs
MSRP
$2,230
$199

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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.

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.

Vaer Dirty Dozen (40mm)

The Vaer Dirty Dozen (40mm) is praised for its nice case design and thin profile, making it wear flat. On balance, owners rate the Vaer Dirty Dozen (40mm) highly for its comfortable wearability due to its thin case.

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