Quadruple Tourbillon Secret, Pink Gold Pre-Daytona the 1016's utilitarian charm has

the 1016's utilitarian charm has seen it become a classic of four-digit tool watches

The 3970 succeeded the 2499 in 1986

made from a single piece of silver and hand turned by Voutillainen

which is world-class

Quadruple Tourbillon Secret, Pink Gold Pre-Daytona the 1016's utilitarian charm hasA Quadruple Tourbillon Secret, 1 of 8 examples made. The Quadruple Tourbillon is a thoroughbred meant to pursue mechanical precision alone. Comprised of 519 components, its architecture is fundamentally unlike anything else in watchmaking: four tourbillons configured in co linear pairs, inclined, and synchronized through a spherical differential that averages any of the few aberrations which would arise from the four high beating oscillators fed