Self-winding chronograph

Self-winding chronograph
A. Hours hand
B. Minutes hand
C. Large seconds hand of the chronograph
D. Hours counter. Counts the hours elapsed (up to 12) since timing began.
E. Minutes counter. Counts the minutes elapsed (up to 30) since timing began. The hand advances one unit for every rotation of the large seconds hand.
F. Seconds hand
G. Start/stop push-piece that activates (through successive pressing) the chronograph function.
H. Reset push-piece. A single press on the lower push-piece returns the central seconds hand, the minutes counter and the hours counter to zero. This return-to-zero is only possible if the chronograph components are stopped.
© Piaget 2013 - http://en.piaget.ae/customer-service/instructions-for-use/chronograph-movement/self-winding-chronograph