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Specification
CASE
diameter: 39 mm
height: 10 mm
lug-to-lug: 20 mm
weight: 65g (case)
material: 316L stainless steel
CRYSTAL
sapphire, scratch-resistant with anti-reflective coating
CASE BACK
sapphire, scratch-resistant with anti-reflective coating
WATER RESISTANCE
10 ATM (100 m)
DIAL
vertically brushed surface with horizontal lines, CNC-machined into the dial base one by one. Hands and indices are covered with BGW9 Super-LumiNova luminescence.
Clockwork
MOVEMENT TYPE
Automatic Swiss movement Sellita SW200-1 Chronometer grade (COSC certified)
POWER RESERVE
max. 41 hours
NUMBER OF JEWELS
26 jewels
FREQUENCY
28,800 vibrations/hour (4 Hz)
FUNCTIONS
time indication - hours, minutes, seconds (central hour, minute and second hands)
date indication - date window at 6 o'clock position)
Packaging
Box with warranty booklet
Strap
Leather and rubber straps with curved spring bars, Quick Release function, and a carbon folding clasp with a patented progressive micro-adjustment system.
Stainless steel bracelet with Quick Release function and a patented progressive micro-adjustment system.
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Strap
Leather and rubber strap or metal bracelet.
Dial
Green vertical brushed surface with horizontal lines that are CNC machined into the dial base one by one. Hands and indices are covered with BGW9 Super-LumiNova luminescence.
Case
Since the launch of the Formex brand in 1999, the patented Case Suspension System has been an integral part of their watches.
Clockwork
Swiss automatic chronometer with COSC certification. Each movement undergoes a 15-day accuracy test, ensuring exceptional precision and reliability, and is complemented by Formex's custom skeletonized rotor.

Description
Formex Swiss Made Watches, founded in 1999, is an independent family-owned watch manufacturer based in Biel/Bienne – a city considered the cradle of Swiss watchmaking. Drawing from a tradition of high-end watch production, it develops and produces models that meet the highest quality standards in the industry, complemented by unique technical solutions for enhanced functionality and comfort.
Thanks to an innovative distribution model, Formex offers an accessible entry into the world of luxury watchmaking for all who appreciate precise craftsmanship and exceptional artistry.

Essence ThirtyOne
The most popular Formex model comes in a 39mm steel case and is equipped with the characteristic patented Case Suspension System. A COSC-certified movement ensures exceptional mechanical precision. With a height of only 10mm, it is a popular "go-anywhere, do-anything" watch for enthusiasts, suitable for everyday wear.
The brushed finish of the case and bezel is perfectly complemented by mirror-polished facets on the machined indices, hands, steel bracelet, and the folding clasp with its own in-house developed and patented 7mm micro-adjustment system.

COSC Chronometer Certified Performance
When it comes to timekeeping accuracy, the gold standard is the COSC Chronometer certification. The Contrôle Officiel Suisse des Chronomètres (COSC) is the official Swiss chronometer testing institute, an independent body that certifies the precision and reliability of Swiss Made watches. The "Chronometer" designation can only be obtained for movements of the highest quality that successfully pass a rigorous 15-day series of tests. This means that the given caliber achieves the highest standards of mechanical reliability and accuracy.
Formex watches are powered by COSC Chronometer certified movements, ensuring the highest level of precision and performance in Swiss watchmaking. Only approximately 6% of all watches produced in Switzerland receive this prestigious designation, making them among the most accurate and reliable mechanical timepieces in the world.