Rolex GMT-Master in stainless steel featuring a 40mm case, black matte dial, blue and red "Pepsi" bezel, and Oyster bracelet. Reference 1675, serial 165XXXX. Circa 1965.
Take a piece of non-stretchable string, ribbon, thread, or a thin strip of paper. Wrap it comfortably around your ring finger, close to the knuckle.