SIGMA diamond set platinum/white gold Art Deco ladies wristwatch, Switzerland/England around 1935, manual winding, hinge case with mobile lugs, fine 18k white gold milanese bracelet, silvered dial spotty, silvered movement, 17 jewels, 4 adjustments, compensation-balance with Breguet-hairspring, diameter approx. 11 mm, length approx. 17 cm, needs to be overhauled, condition 3