For sale is a mint condition and like new Speedmaster 3573.50 reference, also known as Sapphire sandwich. This is a manual wind with the 1863 calibre. Selling to fund another purchase (as always). The dial, case, and bezel are virtually spotless, having been worn very little times. (Disregard the dust on the front and back crystal). Comes on original bracelet, with extra link. Includes inner and outer boxes with hang tag and reference card as you would get from the dealer. Hands, crown, pushers, etc all original, as you would expect from a modern speedy. Price: $3200 overnight within CONUS. International buyers split shipping with me. Email: [email protected] Want more photos, just let me know. Plenty of refs on request. Brandon