Longines L.560-721, Balance, complete
The Longines L.560-721 Balance, comes complete and is brand new without factory packaging.
Longines L.560-721 balance is suitable for Longines calibers L.560.1, 560.2, 561.1, 561.2, 563.1, and 563.2, operating at a frequency of 28,800 vibrations per hour.
