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Movements

Precision at its finest

At Fortis, our commitment to precision and innovation is rooted in history. As pioneers of the first automatic watch in collaboration with John Harwood in 1926, we’ve been setting standards in watchmaking for over a century.  

Werk 13

A true GMT

This Manufacture Calibre co-developed with Kenissi, offers an integrated GMT function with a jumping hour feature that allows the wearer to easily set the local time and change the date forward or backward at any time of the day. 
Power Reserve: 70 hours | Chronometer-Certified | 28 Jewels | Traversing bridge fixed at both sides
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Werk 11

Made to last

This manufacture calibre, co-developed with Kenissi, is certified as a Chronometer by COSC with an impressive power reserve of 70 hours.
Power Reserve: 70 hours | Chronometer-Certified | 28 Jewels | Traversing bridge fixed at both sides
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Werk 17_2
Werk 17

The first and only ever space-tested movement

The Fortis Werk 17 Automatic Manufacture Calibre features a column wheel chronograph for enhanced reliability. 
It was tested in collaboration with the Swedish Space Corporation. The test consisted of a number of movements fixed on a gondola driven by a stratospheric balloon. Launched at the Esrange Space Center, the test-batch took off into the Stratosphere. After a flight time of 1.5 hours under the harsh cosmic conditions, the movements came back down and landed in the vast forest landscape of Finland. A year later in 2022 the movements have been successfully tested during a rocket campaign. For more details please visit the Fortis YouTube channel 
Power Reserve: 60 hours | Performance-Certified | 28 Jewels |
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UW-51

Made to Perform

Crafted with the Fortis philosophy of robustness and reliability, this Bicompax chronograph movement is designed for those who demand precision under pressure. 
Power Reserve: 48 hours | Performance-Certified | 27 Jewels
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UW-30

Uncompromised Reliability 

The UW-30 movement is crafted for those who expect unwavering accuracy in every moment.  
Power Reserve: 38 hours | Performance-Certified | 26 Jewels
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F-2001

World's First Mechanical Chronograph Alarm

A built-in alarm is a rare complication in a mechanical wristwatch. a one-of-a-kind movement. The F2001 calibre marks the first movement to combine the functions of an automatic chronograph and a mechanical alarm. It has been developed in collaboration with Paul Gerber. Two barrels ensure that the movement and the alarm operate independently of each other, making this micro-mechanics feat possible. The harmonious ring of the alarm sounds for about 25 seconds if neither interrupted nor switched off with the button at 8 o’clock.
Power Reserve: 48 hours | Chronometer-Certified | 32 Jewels
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F-2012

The Legendary Daybreaker

The F-2012 automatic chronograph movement with alarm function features a second time zone/GMT, an AM/PM indication, time and alarm power reserve indications, a 30-min counter, a 12-hr counter.
Power Reserve: 48 hours | Chronometer-Certified | 39 Jewels
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We rock Performance

Regulated to chronometer standards by the Fortis Watchmakers in Grenchen according to the Fortis Performance Requirements