The Yacht-Master II is designed to meet the needs of professional sailors. This regatta chronograph features the world's first programmable countdown with a mechanical memory. It provides precise synchronization with the crucial starting sequence of a yacht race.
| Movement | Winding |
| Mechanical | Bidirectional, automatic |
| Functions | Calibre |
| Centre hour and minute hands, small seconds hand at 6 o'clock. Programmable countdown with mechanical memory and on-the-fly synchronization. Stop-seconds for precise time setting | 4161 Calibre, Manufactured by Rolex |
| Water-Resistance | Oyster Architecture |
| Waterproof to 100 metres / 330 feet | Monobloc middle case, screw-down case back and winding crown |