Rare men's wristwatch Cosmograph Daytona featuring the Zenith automatic chronograph movement, in stainless steel and 18-carat yellow gold. Rare champagne Mark I "floating" dial with applied hour markers; 30-minute counter at 3 o'clock; 12-hour counter at 6 o'clock with inverted "6"; small seconds at 9 o'clock. Fixed 18-carat yellow gold bezel engraved with a rare tachymeter scale to 225. Stainless steel and 18-carat yellow gold Oyster bracelet with stainless steel deployant clasp. Sapphire crystal. In excellent condition. Complete with Rolex box and punched papers dated April 1989.