The Breguet or Overcoil Hairspring
The idea for the overcoil came from the horologist Breguet who reasoned that if the outer coil of a flat hairspring was bent uo and… Read More »The Breguet or Overcoil Hairspring
overcoil
Removing and Replacing the Hamilton Floating Stud
The Hamilton floating stud principle for adjusted watches, adopted many years ago makes possible hairsping replacing without recentering and relevling. To remove the balance and… Read More »Removing and Replacing the Hamilton Floating Stud