Side by side

Formex Reef 42 mmvsMassena LAB Uni-Racer

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
Uni-Racer
Massena LABUni-Racer
MSRP $3,495

At a glance

16 of 29 specs differ
Diameter
Reef 42 mm42mm
Uni-Racer39mm
Power Reserve
Reef 42 mm56h
Uni-Racer58h
Water Resistance
Reef 42 mm300m
Uni-Racer50m
MSRP
Reef 42 mm$2,414
Uni-Racer$3,495

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
42mm
39mm
Thickness
11.4mm
9mm
Lug-to-Lug
47mm
46mm
Lug Width
22mm
20mm
Water Resistance
300m
50m

Crystal & Dial

5 specs
Crystal
Sapphire
Acrylic
Crystal Shape
Flat
Domed
AR Coating
Inner
No
Dial Color
Black
White
Lume
Super-LumiNova
None

Movement

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

Pricing

1 specs
MSRP
$2,414
$3,495

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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 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.

Massena LAB Uni-Racer

The Massena LAB Uni-Racer is praised for its refined vintage chronograph aesthetic, featuring a 39mm case with unique horizontal finishing, a GPHG-nominated hand-wound Sellita SW510 M movement, and a sector dial with a "big eye" counter. Owners and reviewers highlight its period-perfect Super-LumiNova and snailing on recessed registers, all supported by a 58-hour power reserve and 50m water resistance. On balance, owners and reviewers rate the Massena LAB Uni-Racer highly for its authentic vintage design and refined execution at its price point.

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