With Patek Philippe presentation box, product literature, spare solid case back and corrector.
Launched in 1994, the reference 5004 split seconds chronograph remains to this day the most complicated model in Patek Philippe's stable of stopwatches. Its movement consists of no fewer than 407 hand-finished parts.
With an additional button in the winding crown, the split seconds mechanism allows lap times to be stopped without interrupting the measurement of total elapsed time. When the button is pressed a second time, the lap time hand immediately catches up with the stop hand.
The model is illustrated in Patek Philippe Wristwatches by Martin Huber and Alan Banbery, 1998, p. 312.