Lemania Caliber 4650 Watch Movement

Lemania Caliber 4650

Manufacturer	Lemania
Caliber Number	4650
In-House?	Yes
Movement Type	Automatic, self-winding mechanical
Lignes	10.5”’
Diameter	23.3mm
Height	6mm
Jewel Count	17 or 21
Beat Rate	18,000 vph
Lift Angle	Unconfirmed
Power Reserve	~40 hours
Hand-Windable?	Yes
Anti-Shock Device	Incabloc
Hand Count	3
Functions	Central hours; central minutes; central sweeping seconds
Country of Manufacture	Switzerland, Swiss made
Known Models	(Add your watch to the comments below…)

Lemania caliber 4650 is a vintage Swiss made automatic watch movement from the 1950s. The 4650 is a true no-date movement with 21 jewels (sometimes 17) and a frequency of 18,000 bph.

This caliber is also used as the basis for other watch brands. For example, the Tissot caliber 23.3R-21 is basically a Lemania 4650 with Tissot branding. If you know of other caliber numbers using the cal. 4650, please leave them in the comments below…

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