Rolex Oyster Perpetual 3131

ROLEX Bubble Back 14k pink gold chronometer gents wristwatch reference 3131, Switzerland around 1946, self winding, screwed down case with smooth bezel, screwed down original winding crown, frosted silvered dial due to age slightly spotty, gilded Arabic numerals and indices, silvered movement with Super- Balance, 17 jewels, in 7 Lagen adjusted, precision adjustment, diameter approx. 32 mm, condition 2-3, property of a collector