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Movement Manufacturer: Osco

caliber list

Caliber	Size	Jewels	Shockp.	Construction	Features	Functions	Condition (Repair)
42	8³/₄ x 12	15J	none	A,HSKMF	ss	h,m,ss	OK
52	8³/₄ x 10'''	17J	???	A,HSKF,M	SCD	h,m,s	OK
66D	10¹/₂'''	17J	???	A,HSK,M,F	SCD,QG	h,m,s,d	OK
66
67		17J				h,m,s	OK
70	5¹/₄'''	17J	RUF	A,HSK,MF		h,m	OK
72	6³/₄ x 8'''	17J	KIF.T.	A,HSKM,F		h,m	OK
107	10¹/₂	8J	MOR	A,HSKM,F		h,m,ss	OK
108	10¹/₂	8J	RUF	A,HSKMF	QG	h,m,d	OK (full service)
850	11¹/₂'''	17J	KIF.T.	A,HSKGZ,F	SCI,QG	h,m,s,d	OK (changed mainspring)
1060	10¹/₂'''	17J	KIF.T.	A,HSK,M,F	SCD	h,m,s	OK
1065	11¹/₂	25J	RUP	A,HSK,M,F	SCD,AUT	h,m,s,a	brocken shock prot.

Movement Photos

By clicking on the photos, you can access the detail pages of the movements.

Osco 52

Osco 66D

Osco 70

Osco 72

Osco 850

Osco 1060

Functions:

h: hour
m: minute
s: second (center second)
ss: second (small second)
d: day
w: weekday
k: full calendar
c: Chronograph
a: selfwinding
e: electromechanical driven
q: quartz controlled

Features:

AL: Alarm
AUT: Selfwinding mechanism
CHR: Chronograph
EL: electromechanical driving mechanism
JG: Weekday indication in window
QG: Date indication in window
RDR: Date quickset mechanism
s: small decentral second
SCD: directly driven center second
SCI: indirectly driven center second hand

Construction: All wheels of one plate are connected without whitespaces; the plates are separated by commas.

A: Pallet fork
H: Escapement wheel
S: Fourth wheel
K: Third wheel
M: Center wheel
G: Large driving wheel
Z: Center second pinion
F: Mainspring barrel
U: transmission wheel

Shock protections: