This 31mm Rolex Oyster is an early and uncommon watch dating to the early 1930s. The case is three pieces with the coin-edge bezel that also can be unscrewed. the original and very rare Rolex onion winding crown has wear in the threads, but fastens down with one turn. The case had wear, so we re-plated it with expensive and fine rhodium. The two-tone dial is completely original. Notice the original cathedral hands. The manual winding Rolex Prima movement is of the finest quality and is adjusted to six positions. These early Rolex three-piece watches are becoming very hard to find.