AS 748

AS 748 | - The Movement Archive

AS 748


A true rarity is this AS 748, which was released under the Ebauches Trust label, too This movement draws not only attention because of its unusual size, its very small bimetal screw balance or its geneva stripes, but mainly because of its digital time indication.

Direct read watches were not invented in the 1970ies, when they became truely propular, but also before World War II, there were a number of wristwatches with it (and even before that, pocket watches had this kind of indication, too), but such tiny watches were not very usual.

The quality of the direct read mechanism can be seen on the fact, that the change of the hour numbers takes only two short minutes. Only watches with jumping hour are faster there.

AS 748: hallmarks


Technical data

Size:4 3/4 x 11'''
Number of jewels:15
Escapement:Pallet lever
Balance types: bimetallic screw balance
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
  • DIG (digital time indication)
References: Flume: 1947 115