Breguet, Type XX, flyback chronograph, Cal. Valjoux 225, 15-minute register, circa 1940s.
Difference between 30-minute and 15-minute registers.
The back of centre seconds wheels.
Left : this watch, 15-minute register Right : Valjoux 22, 30-minute register The finger on the wheel of Valjoux 225 is a little longer in comparison with Valjoux 22. It forwards two teeth of minute register wheel in every minute.
Army & Navy, 18K yellow gold, half-hunter case, English lever escapement with reverse fusee, power reserve indication, diamond end stone, free-sprung, circa 1903.
