This watch is also known as:
16.1230.4002/01.c508 , 16-1230-4002-01-C508 , 1612304002-01C508 .
Stainless Steel Case, Bezel Set with 64 diamonds (aprox. 0.69ct total weight), Leather Strap with Steel Deployment Buckle, Silver Guilloche Dial, Bold Black Arabic Numeral Hour Markers. The Famous El Primero Certified COSC Automatic Chronograph Movement, date displayed between 4 & 5 o'clock position, Stop-Watch Functions.