ETA 2487

 
ETA 2487 |

ETA 2487

Technical data

Manufacturer:ETA
Caliber:2487
Size:5 3/4 x 6 3/4'''
A/h:21600
lift angle:51°
Number of jewels:17
Escapement:Pallet lever
Balance types:Nickel anular balance
Shock protection(s):Incabloc
Balance bearing / direction hairspring:Clockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, large driving wheel
  • mainspring barrel
Winding mechanism:yoke winding system
References:Flume: K3 78
Mentioning in literature (years):1964 - 1968
Hint: The jewel count, the types of balances used, and the shock protections employed refer only to the specimens held in the archive and are therefore not relevant for the precise identification of the movement.