Zenith Defy Extreme Double Tourbillon Yoshida White Gold 65.9100.9020 /21.l200

Zenith presented the Double Tourbillon in 2022 in titanium and in carbon fibre. Its automatic El Primero 9020 calibre has two escapements, each in its own tourbillon: one at 5 Hz for the time, turning once a minute, and one at 50 Hz for the chronograph, turning every 5 seconds, which lets the chronograph read to 1/100th of a second.

Here that movement sits in white gold, in a case 14.5 mm thick that takes a 23 mm strap. Its twin is the Yoshida edition in white and rose gold (87.9100.9020 /22.l200): the same watch and the same run of 8, in a two-tone case.