Longines Avigation Hack Type A-7

LONGINES. A RARE STEEL MANUAL WINDING CHRONOGRAPH WRISTWATCH, Avigation Hack, Ref: Type A-7, c. 1935

LONGINES. A RARE STEEL MANUAL WINDING CHRONOGRAPH WRISTWATCH, Model: Avigation Hack, Reference: Type A-7, Date: c. 1935, Movement: 17-jewel Cal. 18.72 manual winding, Dial: Black, subsidiary dials for the constant seconds and 30-minute register, Arabic indexes, Case: Round, hinged case back and cuvette, crown with coaxial chronograph pusher, Strap/Bracelet: Brown leather, Buckle/Clasp: Metal buckle, Signed: Case and movement, Size: 51mm