The Hamilton Khaki Aviation Pilot Pioneer Mechanical H76419951 was introduced in 2022. Modelled after a watch made for the British Royal Air Force in 1973, it features a cushion-shaped Stainless Steel case of 35*33mm, which houses the hand-wound caliber H-50 ND - but for 2022 this watch is fitted with a White dial rather than the matte black of the 2019 original.