FORTIS - a gentleman's stainless steel B-42 Flieger GMT Chronograph reference 637.10.175

FORTIS - a gentleman's stainless steel B-42 Flieger GMT Chronograph reference 637.10.175, cream dial with gold Arabic numeral hour markers, subsidiary recording dials to six, nine and twelve, date aperture to three. Signed automatic calibre 7750, numbered 13BCC, display case back, serial 2812. Fitted to a signed stainless steel bracelet with deployant clasp and extension link. 42mm