A medicament delivery device is presented having a housing with a distal and a proximal end, the housing being adapted to receive a medicament container with a delivery member or with a connectable delivery member for delivery of a medicament. The device also has a drive mechanism arranged to act on a plunger rod, which plunger rod in turn is arranged to act on the medicament container for providing automatic delivery of the medicament and a hold-release mechanism interactively connected to the drive mechanism for releasing the drive mechanism from a biased position. A delayable signal generating mechanism generates an audible and/or tactile and/or visual signal indicating that the medicament has been completely delivered, which delayable signal generating mechanism is operably connected between said pre-tensioned drive mechanism and said plunger rod.
