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Formex Essence ThirtyNinevsUnimatic Modello Quattro U4S-T-LB Limited Edition Time Only

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

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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 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.

Unimatic Modello Quattro U4S-T-LB Limited Edition Time Only

The Unimatic Modello Quattro U4S-T-LB Limited Edition Time Only is a lightweight titanium field watch celebrated for its summery teal-green and gray California dial with mint-green lume, strong daylight legibility, and noticeably slim profile — reviewers praise the reasonable price and wearability at just 65 grams, a material and finish choice that distinguishes it from Unimatic's typically more affordable stainless steel line. The mint-green lume reads poorly in darkness relative to its daytime contrast, and the 22mm strap adds perceived bulk despite the case's minimal weight. Overall, reviewers rate the Modello Quattro U4S-T-LB highly for its lightweight titanium construction and summery aesthetic at a competitive $1,660 price point.

At a glance

12 of 29 specs differ
Diameter
Essence ThirtyNine39mm
Modello Quattro U4S-T-LB Limited Edition Time Only40mm
Power Reserve
Essence ThirtyNine41h
Modello Quattro U4S-T-LB Limited Edition Time Only
Water Resistance
Essence ThirtyNine100m
Modello Quattro U4S-T-LB Limited Edition Time Only300m
MSRP
Essence ThirtyNine$2,390
Modello Quattro U4S-T-LB Limited Edition Time Only$1,660

Full specifications

Case

7 specs
Category
Dress
Diameter
39mm
40mm
Thickness
10mm
0mm
Lug-to-Lug
45mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Dial Color
Space Ghost
Lume
Super-LumiNova
None

Movement

1 specs
Power Reserve
41h
0h

Pricing

1 specs
MSRP
$2,390
$1,660
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