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AS 340

Features
manual wind
sub second

Data
10.5''', Dm= 23.35mm, Do= 23.75mm
H= 4.3mm
F= 0.5mm
T= 2.1mm
6/7/15 jewels
f = 18000 A/h
power reserve 36h

Balance staff U164

Stem W174

Mainspring / battery
Zf1211, 1.50 x 9.0 x 0.10 x 290mm

Hands
1.30 x 0.80 / 0.24mm

Comments about the data

Remarks
various bridge layouts,
many of them probably signed as AS 340, and only in old data sheets listed with individual designations
differences not known between 302, 303, 311, 313, 323, 324, 328, 329, 333, 340, 342, 344, 361, 362, 365, 371, 383, 396, 473, 546, 549, 569, 585, 595, 603, 621, 629, 636, 694, 709, 714, 717, 720, 731, 775, 790, 803, 825, 915, 951

family:
302, 340: 10.5'''
341: 10.5''', thinner, different balance
780: 11.5'''
806: 11.5''', date
831: 10.5''', date
838: 11.5''', day, date

Example, year: signature; shock device
1-2) ca. 1925: Swiss Made - AS
1-2) ca. 1925: Swiss Made - AS
5) ca. 1930: Morris Alister-Ball-Bridess Co. Swiss, Garland 609, 2 Adjs, 6 Jewels - AS
6) ca. 1930: Bertmar, Swiss, 15 Jewels - AS 340

© B. Johnson (5-6)

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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