PIAGET REF. 4926 DIAMOND and RUBY LADY'S YELLOW GOLD Piaget, No. 9703782, case No. 405342, Ref. 4926 E21. Made in the 1970s. Very fine, cushion-shaped, 18K yellow gold, rubies and diamond-set lady's wristwatch with an integral 18K yellow gold twisted rope bracelet. Accompanied by a fitted box. Two-body, solid, bezel set with 18 round diamonds and 18 shaped rubies, case back secured by four screws. SatinÈ gold set with 4 round ruby indexes. Yellow gold dauphine hands. Cal. 40P, rhodium-plated, 19 jewels, straightline lever escapement, monometallic balance, self-compensating flat balance spring, shock absorber.