Sauterelle à lune perpétuelle

The Sauterelle à lune perpétuelle is the most precise phase of the moon indication ever built in a wristwatch. It made it into the Guinness Book of Records. It is also the most precise phase of the moon by some margin: Approximately 2.045 million years.

The runner-up, by the way, is Andreas Strehler’s predecessor Sauterelle à lune perpétuelle with its precision of 14’189 years. Technically, the Sauterelle à Lune perpétuelle 2M is based on the Sauterellewhich Andreas Strehler presented last year. Like the Sauterelle, the 2M has Andreas Strehler’s unique remontoir d’égalité. This provides a constant supply of energy to the escapement.


Movement Mechanical, manual winding
Complication Remontoir d’égalité, world most precise Moon Phase (2 million years for 1 day variation)
Power reserve 78 hours, double barrel mainspring
Movement size Tonneau shape: 32x30mm, 5.9mm thickness
Frequency 3Hz / 21’600 A/h
Jewels 25
Movement parts 162
Case 18K rose gold or platinum
Case size 41×47.2mm, 10mm height
Hands Blue steel or gold
Dial In silver and sapphire
Strap Black alligator with tang buckle in 18K rose gold or platinum
Price CHF 113’000
Calibre Specification HERE