IWC Aquatimer

IWC's diving watch with a rotating ring inside the crystal.

The Aquatimer came out in 1967 and was IWC's first diving watch. Later versions have had an outer bezel that turns the inner ring.

Materials: Stainless steel; self-winding movement

Manufacture: Made in Schaffhausen; the inner ring is turned by a second crown.

Two crowns, one for the inner ring.

The inner ring with a minute scale.

• Clocks and watches
• IWC Schaffhausen