El Primero Striking 10th

The unique El Primero Striking 10th model renders 1/10ths of a second visible, the smallest vision of time measured by a seriesmade mechanical movement. Thanks to its Striking 10th function incorporated in the El Primero 4052 B calibre oscillating at 36,000 vibrations per hour, 1/10ths of a second can be read off using the central sweep secondshand which performs a complete turn of the dial in 10 seconds. The three counters reflect the colours of the 1969 El Primero chronograph on a dial framed by a 42 mm case water-resistant to 100 metres.