LADY'S 18K YELLOW GOLD AND DIAMOND WRISTWATCH,by Bucherer. Oval case set with 30 matched round diamonds centering brushed black metallic face with dots for numerals; flexible strap constructed of triple chains of spiraling links; fold-over clasp. - L: app. 6 1/2 in. Gross wt.: 1 oz. 14 dwt. Estimate $750-1,000