AS 1749
Description
In the 1960ies, AS experimented to find out if a winding mechanism, winding in both directions is better, than a winding mechanism, winding only in one direction. For this, in that movement, the winding mechanism was an exchangeable module, located between “6” and “7”.
In the movement shown here, a caliber 1749, which extended the base caliber AS 1748 by a date mechanism, the winding module for only one direction was built in and so the movement winds only conterclockwise.
Technical data
| Manufacturer: | AS |
| Caliber: | 1749 |
| Size: | 11 1/2''' |
| A/h: | 18000 |
| lift angle: | 52° |
| Number of jewels: | 25 |
| Escapement: | Pallet lever |
| Balance types: |
Nickel anular balance |
| Shock protection(s): |
Incabloc |
| Balance bearing / direction hairspring: | Clockwise |
| Moveable stud: | yes |
| Adjust mechanism: | Hairspring key |
| Features: |
|
| References: |
Flume: K3 184 |
| Mentioning in literature (years): | 1967 - 1968 |