Very fine, rare and unusual, 18K pink gold self-winding, instantaneous triple date wristwatch with black dial, seconds at 6 o’clock, date at 12 o’clock, day and month spelled out on their respective rollers. Six anti-reflective sapphire crystals—three on the front and three on the caseback. (Collaboration between Daniel Roth, Roger Dubuis and Peter Speake- Marin.)