Black dial, with indications of hours, minutes, seconds, 30-minute totalizer, 12-hour totalizer, central chrono and five-hour dates.
El primero automatic movement (considered by many to be the best automatic chrono in the world because even Rolex has used it for a few years for its Daytona chrono)
Waterproof stainless steel case and steel bracelet. perfect Condition,
Revised guaranteed. Original box.
I remain at your disposal for any further information or photos.