An embedded winding mechanism for a watch or an automatic watch. The watch or the automatic watch including a mainspring wheel configured to wind a mainspring, at least one electric motor and at least one oscillating weight. The embedded winding mechanism including at least one primary ratchet gear configured to mesh the mainspring wheel of the watch or an automatic watch when the at least one oscillating weight meshes the at least one primary ratchet gear, and at least one secondary ratchet gear configured to actuate the mainspring wheel of the watch or an automatic watch when the at least one electric motor actuates the at least one secondary ratchet gear.

A power management method for a solar watch or a solar automatic watch. The power management method including at least one providing a primary power supply from at least one energy supplier. The primary power supply is converted to a secondary power supply when the primary power supply reaches at least one primary threshold and/or at least one secondary threshold. A motor is supplied with the secondary power supply such as to wind a mainspring via the motor.

A power management method for a solar watch or a solar automatic watch. The power management method including at least one providing a primary power supply from at least one energy supplier. The primary power supply is converted to a secondary power supply when the primary power supply reaches at least one primary threshold and/or at least one secondary threshold. A motor is supplied with the secondary power supply such as to wind a mainspring via the motor.