Rolex Oyster Perpetual Date Just circa 1991 REF. 68278 N° N490582 in 18K yellow gold. Gray dial, gold baton indexes and hands. Movement cal 2135. Freq 28800 vph. Sapphire crystal. President gold bracelet, invisible folding clasp. Accompanied by its travel case. Diameter: 31 mm Gross weight: 98.6 g.