Sonceboz ES 55
watch, watches, wristwatch, wristwatches, caliber, Switzerland
Description
The diameter is 11 1/4 lignes and it beats with 21600 A/h. The balance runs in two
shock protection systems with three legs; on the movement side with a jewel, on the dial
side only with a steel plate. The balance drives a pin lever, the center second hand is
directly driven while the cannon pinion is driven indirectly by the mainspring barrel.
Technical data
| Manufacturer | Sonceboz |
| Caliber | ES 55 |
| Number of jewels | 1 |
| Escapement | pin lever |
| Balance | Nickel |
| Shock protection(s) | Brac Dip Resomatic |
| Balance cock direction | clockwise |
| Hairspring stud | moveable |
| Regulator type | Hairspring key |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Large driving wheel
Mainspring barrel |
| Winding mechanism | yoke |
| Setting lever spring | 1 holes |
| Features | SCD |
| Functions | Hour, minute, second |
| Beats per hour | 21600 |
| Size | 113/4''' |
| Production time | 1978 - ? |
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| Factsheet |
Usage gallery
