The Breitling Navitimer 8 Chronograph was introduced in 2018 as part of the then-new Navitimer 8 collection. It features a stainless steel case of 43*14.17mm, which houses the self-winding caliber B13 (Valjoux 7750). Reference A13316101 was introduced in 2019 as a replacement for the A13314101 . Changes include a rename to Aviator 8 and a revolving bezel calibrated for 12-hours.