Fig. 1From: Attiny85 controlled watch winder for self-winding mechanical watchesWinding gear train of SEIKO7S26A Caliber. A The oscillating weight or the rotor, B First reduction wheel, C Pawl Lever, D Second Reduction wheel, E Ratchet Wheel, F Mainspring, contained in the barrel (attached to the Ratchet Wheel)Back to article page