Audemars Piguet. A fine and rare 18K white gold square jump hour wristwatch with unusual lugs and bracelet

Audemars Piguet. A fine and rare 18K white gold square jump hour wristwatch with unusual lugs and bracelet
Signed Audemars Piguet & Co., dial bearing the signature Cartier, no. 38'617, manufactured in 1928
Cal. GHSM 10''' nickel-finished lever movement, 17 jewels, bimetallic compensation balance, silvered matte dial, window for the jumping Arabic hours, outer applied Arabic numerals for the five minute divisions with central hand, subsidiary seconds, square case, snap on back with engraved inscription S.L.R. from W.H. 2.13.1929, enlarged straight flexible lugs, mesh bracelet and 14K gold deployant clasp signed Cartier, case and movement numbered and signed by maker, dial bearing the signature Cartier
25 mm. wide & 41 mm. overall length