Side by side

Massena LAB Archetype 1.0vsFormex Reef 39.5 mm

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

Archetype 1.0
Massena LABArchetype 1.0
MSRP $4,250
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

15 of 29 specs differ
Diameter
Archetype 1.042mm
Reef 39.5 mm39.5mm
Power Reserve
Archetype 1.058h
Reef 39.5 mm56h
Water Resistance
Archetype 1.0100m
Reef 39.5 mm300m
MSRP
Archetype 1.0$4,250
Reef 39.5 mm$2,230

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
39.5mm
Thickness
14mm
11mm
Lug-to-Lug
46mm
45.5mm
Lug Width
20mm
22mm
Water Resistance
100m
300m

Crystal & Dial

4 specs
Crystal Shape
Double-Domed
Flat
AR Coating
Yes
Inner
Dial Color
Champagne
Bahama Blue
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
SW510 BH M Elaboré
Sellita SW300-1
Type
Manual
Automatic
Power Reserve
58h
56h
Jewels
23
25

Pricing

1 specs
MSRP
$4,250
$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.

Massena LAB Archetype 1.0

Owners find the Massena LAB Archetype 1.1's dial visually appealing with blue and gold accents, but also too cluttered with multiple dial rings. The Sellita SW510 BH M Elaboré movement is considered solid, though not top-tier. The $5,000 price point for a microbrand using a serial movement is questioned by some owners. On balance, owners are split on the Massena LAB Archetype 1.1, with some appreciating its aesthetic and movement while others find the dial too busy and the price point high for a microbrand.

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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