Seiko 6139- repairing the damage hairspring.
22:56
Hairspring straightening 101
1:36:49
Random Clock Talks Vol 16 - Hairsprings
1:03:29
Hairspring Havoc: A 1973 Seiko Balance Repair & Service Journey
9:27
How to repair a twisted hairspring. Watch repair techniques
12:04
Straightening a hairspring for a ladies watch
24:27
A '75s Seiko Watch 6119 - Service, Polishing, Re-lume Hands
56:30
What I Find Inside This Watch Is Shocking! Can I Fix What Seiko Can't? 1977 Seiko "Turtle" Repair
40:58