PORSCHE DESIGN Military chronograph, self winding, Switzerland 1980′s, reference 7177, frosted stainless steel case including bracelet with deployant clasp, screwed down case back & winding crown, sapphire crystal, 60 minutes- & 12 hour-register, 24 hour- display, day & date, base calibre Lemania 5100, diameter approx. 41 mm, length approx. 19,5 cm, signs of use due to age, condition 2, property of a collector