“R & D” stands for “Research & Development”. In collaboration with active athletes, including sailors and racers, it was decided to install the pushers of this chronograph on the left side. The crown with rounded crown protection is - just like with the model Sea Hawk - easily accessible at its positioning at 4 o'clock and ensures maximum comfort.

The crown cap, whose shape reminds of the air intake of a racing car, houses the date correction. The caseback is secured with six Allen screws - like a race car - and has a sapphire crystal which allows a clear view of the handmade movement.