Longines Bêta 21, year 1970

For your information, I do not repair this type of watch.

The movement consists of three modules:

The electronic module, the motor module, the display module
Production of 6,000 movements at a fixed price of 700 francs each.
Omega marketed the largest number of movements: 1'830 piece
Production from 1970 to 1972.

Four companies shared the manufacturing tasks:

- Ebauches SA, ETA Grenchen, produced the blank and the calendar
- Oscilloquartz in Neuchâtel, a department of Ebauches SA, the quartz
- Omega in Bienne, vibrating motor
- CEH, production of the integrated circuit and the trimmer, assembly of the electronic part
21 brands will use it, including Rolex, IWC, Omega, Longines, etc...