Homepage - Contents - G. Tuning Fork Watches, 3. Omega < Previous page | Next page >

G.3 Omega

The 'Megasonic f 720' (cal.1220 and 1230) with a frequency of 720 Hz was introduced at the Basle Fair in 1973. This caliber is developed by Max Hetzel and has two very interesting parts: an asymmetrical tuning fork and a micromotor. The micromotor has been attached to the tuning fork and turns the vibrations of the tuning fork into rotations in one single direction. The transmission is magnetic without any mechanical contact. The patent application was filed on April 27th 1971 (Offenlegungsschrift 2214915, Germany).

< Previous page |  Top  | Next page >

Related Photos: 1

Copyright by Pieter Doensen

email: doensen@xs4all.nl

All rights reserved. No part of this work may be reproduced or used in any forms or by any means - graphic, electronic or mechanical, including (but not limited to) photocopying or information storage and retrieval systems - without written permission from the copyright holder.