Family: L52072h power reserve
The L520 is Longines' in-house automatic caliber introduced in 2019. It features a silicon balance spring and delivers a 72-hour power reserve. The movement remains in production and serves as a base for several Longines collections.
Last updated 29 Apr 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Power Reserve
72h
Display Type
Analog
FEATURES
Silicon Hairspring
QUICK FACTS
FOR WATCH DEALERS
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