Abstract: The invention relates to a watch comprising a first hour wheel (16) which is rotatably driven around a rotating pin (3) by means of a drive unit and supports a first hour hand (1), and a second hour wheel ((26) that is joined to the first hour wheel (16) via a springy catching connection and is rotatably driven about a second rotating pin (13) by the first hour wheel (16), a second hour hand (11) being rotatably driven by means of said second hour wheel (26). The watch further comprises a manually adjustable winding stem (62) which supports a drive wheel and with the aid of which the two hour wheels (16 and 23) can be adjusted jointly or individually. The first hour wheel (16) can be adjusted by the drive wheel while the second hour wheel or a third hour tube (26) that supports the second hour hand (11) can be blocked by a manually actuated blocking device.

Abstract: The invention relates to a watch comprising a first hour wheel (16) which is rotatably driven around a rotating pin (3) by means of a drive unit and supports a first hour hand (1), and a second hour wheel ((26) that is joined to the first hour wheel (16) via a springy catching connection and is rotatably driven about a second rotating pin (13) by the first hour wheel (16), a second hour hand (11) being rotatably driven by means of said second hour wheel (26). The watch further comprises a manually adjustable winding stem (62) which supports a drive wheel and with the aid of which the two hour wheels (16 and 23) can be adjusted jointly or individually. The first hour wheel (16) can be adjusted by the drive wheel while the second hour wheel or a third hour tube (26) that supports the second hour hand (11) can be blocked by a manually actuated blocking device.

Abstract: A method for manufacturing a balance-spring for a clockwork movement wherein a spring is formed by winding, from a wire or metal strip, said spring including an inner end intended to be fixed to a balance and a outer end zone intended to be fixed to the balance-spring stud and wherein the whole spring is subjected to a first heat treatment subsequent to the winding step of said wire. The method of the invention is characterized in that it further includes an additional step consisting in subjecting at least said outer end zone to a second heat treatment.This method improves in particular the shock resistance of the balance-spring.