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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							OK
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)
300	10¹/₂	17J	KIF.T.	A,HSKMF	SCI	h,m,s
331							OK
500							OK
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.

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: