Hairspring③ Making a breguet hairspring. How to make a over coil.　巻き上げヒゲの作成

Hairspring straightening 101

Screw for setting lever オシドリネジ作成

Practical course to mechanical watchmaking - balance wheel and spiral [The Amateur Watchmaker]

Balance staff③ for JLC 426/1 (very small) 天真別作

Watch assembly on the 'Chaika 1601A' movement, 17 jewels

Repairing tooth of minute wheel. 歯車の入れ歯

Watchmaking: Machining the Heart of a Watch

Math Videos: How To Learn Basic Arithmetic Fast - Online Tutorial Lessons

Balance staff repair - The Easy Way

Hair Spring Straightening (1974)

Straightening a hairspring for a ladies watch

Hand Making a Verge Watch Hairspring Pt.1

Change of damaged hairspring Part 2 START wrist watch made from a junk

Seiko 6139- repairing the damage hairspring.

How to repair a bent hairspring watch repair tutorials

Watchmaking, terminal curve on a hairspring, Endkurve biegen

Cannon pinion. 筒カナ作成

Watchmaking - Making Carbon Steel Hairsprings for Watches, Clocks and Other Small Mechanism.

Repairing distorted hairspring of a LeCoultre Cal. 1 movement

Barrel case 香箱作成　Piaget 12P