Longines Caliber L561

Brand	Longines
Caliber Number	L561 (see variations below)
In-House?	No
Base Movement	ETA 2671
Movement Type	Automatic, self-winding mechanical
Lignes	7.75”’
Diameter	17.2mm
Height	4.8mm
Jewel Count	17 or 25
Beat Rate	28,800 vph, 4Hz
Lift Angle	Unconfirmed
Power Reserve	~38 hours
Rotor Style	Ball-bearing
Hand-Windable?	Yes
Anti-Shock Device	Kif
Hand Count	3
Functions	Central hours; central minutes; central sweeping seconds; date at 3:00
Hacking Seconds?	Yes
Country of Manufacture	Switzerland, Swiss made
Known Models	(Add your watch to the comments below…)

The Longines caliber L561.1 is a Swiss made ladies size 3-hander automatic movement with a date.

Known Variations:

• L561.1 – 25 jewels (vintage)
• L561.2 – 17 jewels (vintage)
• L561.4 – 25 jewels (modern)

Additional Resources:

• More Longines watch movements