ETA 2661

 
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ETA 2661

Description

In the early 1970ies, ETA lauched their final movement series of 7 34 sized movements. Their variations ranged from a simple handwinding movement with 21600A/h (ETA 2640) to the high-beat selfwinding movement with day and date (ETA 2678).
From this series originates this caliber ETA 2661, a high-beat movement with date display.

Technical data

Manufacturer:ETA
Caliber:2661
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): Incabloc
Balance bearing / direction hairspring:Counterclockwise
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
Features:SCD,QG,RDR
Functions:hour, minute, second, day
A/h:28800
Size:7 3/4'''
Literature: Flume: K3N1 -

Usage gallery

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