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View picture in original size
Fig. 1

View picture in original size
Fig. 2

EB 8021N

manual wind
sweep second
date: set by +/-24h

11.5''', Dm= 25.6mm, Do= 26.0mm
H= 5.1mm
F= 1.4mm
T= 2.4mm
17/23 jewels
f = 18000 A/h
power reserve 37h

Balance staff U2368

Stem W1152

Mainspring / battery
Zf1214, 1.50 x 9.0 x 0.105 x 270mm

1.30 x 0.90 x 0.20mm

Comments about the data

pin-lever escapement
ratchet on dial side, crown mechanism with rocker bar

with set-lever spring:
1553: 10.5'''
1554, 1605: 11.5'''
1579: 10.5''', date
without set-lever spring:
8020: 10.5'''
8021: 11.5''', date
8022: 11.5'''
suffix N, -68: minor modifications and their year of introduction

Example, year: signature; shock device
ca. 1965: EB 8021N, E3, Swiss, 23 Jewels; Kif-Trior

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft

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