Omega - a Speedmaster 'Ed White' chronograph watch, 39mm. Omega - a Speedmaster 'Ed White' chronograph wrist watch. Stainless steel case with tachymeter bezel. Reference S105.003-63, serial 20521962. Signed manual wind calibre 321. Black 'High Swiss Made' dial with luminous hour markers, subsidiary recorder dials to three, six and nine. Fitted to an unsigned grey nylon 'NATO' style strap with stainless steel pin buckle.