Side by side

Formex Essence ThirtyNinevsMassena LAB Geometer

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is praised for its impressive build quality and value, featuring a patented case suspension system for comfort and protection. It houses a COSC-certified Sellita SW200-1 movement with a 38-hour power reserve and a tool-free strap quick-release system. A minor inconvenience noted is the specific closing order of the clasp. On balance, reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value at its price point.

From video reviewers

The case suspension system enhances comfort and the COSC-certified movement is a strong feature. The bracelet exhibits noticeable rattle. Reviewers disagreed on the ideal case size, with some preferring the 39mm and others the 41mm.

Massena LAB Geometer

Massena LAB is lauded for its vintage-inspired designs, with reviewers highlighting the attractive sector dial and glossy black dial with gilt printing. The manual-winding SW510 Elaboré movement is noted, and the 39mm case is described as polished stainless steel. Some find the minute and hour hands difficult to distinguish, and one reviewer criticized the dial for only displaying Massena's name. The price points mentioned range from $5,995 to $8,675. Overall, reviewers rate Massena LAB highly for its vintage aesthetics and value, particularly noting the striking dials and modern horological touches.

At a glance

15 of 29 specs differ
Diameter
Essence ThirtyNine39mm
Geometer39mm
Power Reserve
Essence ThirtyNine41h
Geometer58h
Water Resistance
Essence ThirtyNine100m
Geometer50m
MSRP
Essence ThirtyNine$2,390
Geometer$3,495

Full specifications

Case

5 specs
Category
Dress
Chronograph
Thickness
10mm
9mm
Lug-to-Lug
45mm
0mm
Lug Width
20mm
0mm
Water Resistance
100m
50m

Crystal & Dial

5 specs
Crystal
Sapphire
Acrylic
Crystal Shape
Domed
AR Coating
No
Dial Color
Space Ghost
Brown
Lume
Super-LumiNova
Cream

Movement

4 specs
Caliber
Sellita SW200-1
Sellita SW510
Type
Automatic
Manual
Power Reserve
41h
58h
Jewels
0
23

Pricing

1 specs
MSRP
$2,390
$3,495
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