Side by side

Formex Essence ThirtyNinevsOmega Constellation Co Axial Master Chronometer

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.

Omega Constellation Co Axial Master Chronometer

Owners widely praise the Omega Constellation Co Axial Master Chronometer for its refined, elegant design and handsome monochromatic look, with some calling it the most underrated model in Omega's lineup. Reviewers note its well-built precision chronometer status and silky sun-brushed dial. One owner expresses immense pride in their purchase, viewing it as a generational timepiece. Some commenters prefer its design over other Omega models, though one found the dimensions and bracelet not to their personal taste. The 29mm case is 50m water resistant and features scarce lume, disqualifying it as a sports watch. Overall, owners and reviewers rate the Omega Constellation Co Axial Master Chronometer highly for its discreet elegance and generational heirloom potential.

At a glance

14 of 29 specs differ
Diameter
Essence ThirtyNine39mm
Constellation Co Axial Master Chronometer29mm
Power Reserve
Essence ThirtyNine41h
Constellation Co Axial Master Chronometer50h
Water Resistance
Essence ThirtyNine100m
Constellation Co Axial Master Chronometer50m
MSRP
Essence ThirtyNine$2,390
Constellation Co Axial Master Chronometer$7,200

Full specifications

Case

6 specs
Diameter
39mm
29mm
Thickness
10mm
12mm
Lug-to-Lug
45mm
31.2mm
Lug Width
20mm
Finish
Steel
Water Resistance
100m
50m

Crystal & Dial

3 specs
Crystal Shape
Domed
Dial Color
Space Ghost
Silver
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW200-1
Omega 8700
Power Reserve
41h
50h
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$2,390
$7,200
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