Rolex Oyster Perpetual "Bubble Back" Silver Dial in steel ref. 2764This early Rolex Oyster Perpetual reference 2764 was introduced in the late 1930s and features a distinctive domed case back, designed to accommodate one of Rolexs early automatic movements. Often referred to as ovetti (little eggs) in Italy, these watches are an underrated vintage gem on the wristfull of charm and character. And while the 32mm size might sound modest, they actually wear larger thanks to the thicker, more pronounced case back. The