Saturday, May 6, 2017

Clock BY 21Dez12ME by Miki Eleta

The magnificent BY 21Dez12ME mechanical clock created by Swiss master watchmaker Miki Eleta houses some spectacular horological complications such as Retrograde minute, Jumping hour, Moon phases, World time indication and Gravity tourbillon.
The retrograde minute indicator is moved by a snail. The dial jumps 24 times per hour. A pin on the hour dial moves the weekday indication 7 times a day. The moon phase gear wheel with 135 teeth carries the moon hemisphere. It is moved once a day by the weekday gear wheel with 16 teeth to indicate he position of the moon in a three dimensional way.
World time indication: a hemispherical cover indicates the night on the glass globe. The globe moves in jumps 24 times per hour. The dials underneath show the actual time in 12 cities around the globe.

Gravity tourbillon: as far as I know, this kind of tourbillon is presented for the first time. The complete driving mechanics lifts the remontoire with the gravity tourbillon placed at its end. The tourbillon is lifted and falls back freely providing constant force to the escapement.

Technical specifications
Retrograde minute
Jumping hour
Day of the week
Phase of the moon
World time indication
Gravity tourbillon, chronometer escapement
Outer diameter: 25 cm
Height: 20 cm
Weight: 5 kg
Materials: gildened brass, bronze, chrome steel, glass, lapis lazuli, ruby
Glass artist: Guido Stadelmann, Zürich

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