A RARE GENTLEMAN'S STAINLESS STEEL BRITISH MILITARY R.A.F. IWC MARK 11 PILOT'S WRISTWATCH DATED 1950, REF. 2612, WITH IWC ARCHIVES & SERVICE RECEIPT FROM 2002 D: Black dial with applied Arabic numerals & tritium luminous markers, military arrow. M: Manual wind movement signed International Watch Co with military arrow & numbered, calibre 89. C: Military case with fixed bars, signed IWC, issue markings ^ 6B/346 635/50, case diameter measures approx 36mm. S: Black leather strap with IWC pin buckle.