Zenith El Primero Tourbillon 03.2050.4035/01.C713,Previously seen on the Spirit and Spirit Flyback Chronograph, Longines is now dressing the 39mm Spirit Zulu Time in light-weight and rigid Grade 5 titanium attire. 💪 Powered by automatic calibre L844.4,Zenith El Primero Tourbillon Chronograph Men's Watch 18.2050.4035/01.C713,Previously seen on the Spirit and Spirit Flyback Chronograph, Longines is now dressing the 39mm Spirit Zulu Time in light-weight and rigid Grade 5 titanium attire. 💪 Powered by automatic calibre L844.4,Zenith El Primero Tourbillon Chronograph (03.2050.4035/01.C713) Luxury Watch Review