![Catgut 1.40 mm (10567597455)](http://perrinwatchparts.com/cdn/shop/products/72.520-600_600x600.jpg?v=1595350889)
Catgut 1.40 mm is most commonly used for older clocks with wooden pulleys. Catgut 1.40 mm is 1.40 mm in diameter and has 2 coils that measure a length of 3.5 M each (a total of 20 ft).
Catgut 1.40 mm is most commonly used for older clocks with wooden pulleys. Catgut 1.40 mm is 1.40 mm in diameter and has 2 coils that measure a length of 3.5 M each (a total of 20 ft).