Formex model

Formex Aria: specs, Founder's Edition and official videos

The Formex Aria Manufacture Chronometer is an ultra-thin titanium sports watch with an integrated bracelet, introduced by the Swiss brand Formex in 2026. This page explains its caliber, the 100-piece Founder's Edition and what may drive its value, and shows the official Formex videos.

Introduced: May 2026
Case: 40 mm, 6.9 mm thick, Grade 5 titanium
Movement: Caliber FX01, micro-rotor automatic, COSC-certified
Launch price: CHF 5,900 (Founder's Edition of 100)

Extreme Watchmaking Revealed: The Formex Aria And How It's Made – official video by Formex on YouTube

What the Formex Aria is

Formex is an independent brand based in Biel, Switzerland, known for collections such as Essence, Reef and Stratos and for its patented Case Suspension System. The Aria Manufacture Chronometer, introduced in late May 2026, is an integrated-bracelet sports watch and the first Formex to carry a movement the brand calls its own manufacture caliber. Formex describes it as its most ambitious watch so far, and at CHF 5,900 it costs more than anything the brand had made before.

The Founder's Edition

The first batch is a Founder's Edition of 100 individually numbered watches, split across three dial colors. Pre-orders opened in May 2026 and are now closed because all 100 pieces sold. Deliveries of the first batch were announced to begin in September 2026.

Series	Years	References	Case	Movement
Denso Blue	2026	0513.1.5033	40 mm titanium, 6.9 mm	FX01, 25,200 vph, about 72 h
Selva Green	2026	0513.1.5103	40 mm titanium, 6.9 mm	FX01, 25,200 vph, about 72 h
Ardesia Grey	2026	0513.1.5133	40 mm titanium, 6.9 mm	FX01, 25,200 vph, about 72 h

All three have a matte lacquered brass dial stamped from a single piece, with a concave surface, small seconds at 6 o'clock and Super-LumiNova on hands and indices. The case and the integrated bracelet are Grade 5 titanium. The bracelet has quick-release end links and a double folding clasp with micro-adjustment of 3 mm on each side.

Case and movement

The case is 40 mm wide, 6.9 mm thick and 45.45 mm lug to lug, with sapphire crystal on the front and the back. Water resistance is 30 meters, which is low for a sports watch. With the bracelet it weighs 78 g.

The movement is Caliber FX01, an automatic with a tungsten micro-rotor. It is 30 mm in diameter and only 2.9 mm high, and it is what keeps the watch so thin. Key figures:

25,200 vibrations per hour (3.5 Hz) and 25 jewels
About 72 hours of power reserve
Silicon hairspring, escape wheel and pallet fork
A flexible geartrain pinion meant to remove backlash when setting the hands
COSC chronometer certification

Worth knowing: the FX01 was developed with Horage and is based on Horage's K2 micro-rotor caliber, made exclusively for Formex. Monochrome notes that it is not a fully in-house manufacture caliber in the traditional sense, even though the watch is branded as a Manufacture Chronometer.

What is a Formex Aria worth?

The Aria is brand new, so there is no long record of resale prices and we know of no documented auction results. The launch price was CHF 5,900 (EUR 7,600, USD 7,900). Because only 100 numbered Founder's Edition watches exist, the number on the watch, the color, the condition and a complete set with box and papers are likely to matter most. Treat any figure quoted today as an asking price, not a proven market value.

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Official Formex Aria videos

All videos come from the official Formex YouTube channel. They cover the launch, the story behind the movement and how the watch is made – the instruction video for the watch is Video Instructions.

More Formex videos, sorted by model: all official Formex playlists.

Sources (4)

SwissWatchExperts is not affiliated with Formex. Brand and model names are trademarks of their owners; the videos are embedded from the official Formex YouTube channel.

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Frequently asked questions

When was the Formex Aria introduced?

Formex introduced the Aria Manufacture Chronometer in late May 2026. Pre-orders for the Founder's Edition opened that month and deliveries were announced to start in September 2026.

How big is the Formex Aria?

The case is 40 mm in diameter, 6.9 mm thick and 45.45 mm lug to lug. The watch is Grade 5 titanium and weighs 78 g with the bracelet.

Which movement is in the Formex Aria?

Caliber FX01, an automatic with a tungsten micro-rotor, 2.9 mm high, 25,200 vph and about 72 hours of power reserve. It was developed with Horage and is based on Horage's K2 caliber.

How many Formex Aria watches were made?

The first batch is a Founder's Edition of 100 numbered pieces in Denso Blue, Selva Green and Ardesia Grey. It sold out in pre-order.

How do I tell the three versions apart?

By dial color and reference: Denso Blue is 0513.1.5033, Selva Green is 0513.1.5103 and Ardesia Grey is 0513.1.5133.

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