The Titanium Field Guide

Formex Essence Leggera FortyOne Forged Carbon

0331.4.6398.910

The Formex Essence Leggera FortyOne Forged Carbon is a current-production integrated bracelet watch with a forged carbon case. At 40 g it sits among the lighter integrated bracelet watches in the guide, and is priced well under the $13,593.50 median for the category. The caseback is open, so the movement is visible.

All Formex watchesExotic-material integrated bracelet watchesUnder $3,000MicrobrandLightweightLightest, rankedDisplay back
Price
$2,520
Material
Carbon
Grade / type
Forged carbon
Weight
40 g (head only)
Water resistance
300 m
Reference
0331.4.6398.910
Type
Integrated bracelet
Case diameter
41.0 mm
Origin
Switzerland
Movement
Automatic, chronometer
Caliber
Sellita SW200-1 (COSC)
Power reserve
41 hours
Complications
Date
Colour
Black
Construction
Assembled
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Rubber or leather strap with the Formex case suspension system
Crystal
Sapphire
Display back
Yes
Dial
Space Glacier (Muonionalusta meteorite, ice-blue), also Space Gold
Dial colours
Blue Gold Meteorite
Lume
Super-LumiNova
Availability
Offered
Status
Current
Not published
Thickness, Lug-to-lug, Hardness, Surface treatment, Matching bracelet
High confidence Verified Jul 2026 Source: Formex Essence Leggera 41mm (maker)
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Frequently asked questions

What is the case material of the Formex Essence Leggera FortyOne Forged Carbon?

The Formex Essence Leggera FortyOne Forged Carbon has a forged carbon case with a titanium caseback. This is confirmed against the maker spec.

What size is the Formex Essence Leggera FortyOne Forged Carbon?

It is 41.0 mm in diameter, and water resistant to 300 m.

How much does the Formex Essence Leggera FortyOne Forged Carbon weigh?

About 40 g (head).

How much does the Formex Essence Leggera FortyOne Forged Carbon cost, and is it available?

It is current-production and lists from $2,520.

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