Tissot. A stainless steel manual wind calendar alarm bracelet watch
Naviator Sonorous, Ref:40530-1X, Movement No.17303521, Circa 1975
17-jewel manual wind movement, brushed silvered dial with outer sunburst dark grey ring, applied polished faceted baton hour markers with luminous inserts, black inner minute divisions, polished baton hands with luminous inserts and centre seconds, orange alarm hand, date aperture at 3, brushed tonneau shaped case with screw down back, metal cap, signed crowns at 2 and 4, polished bezel, fitted bracelet with signed folding clasp, case dial and movement signed 37mm.