This W-serial Rolex Daytona Ref 16520 in steel is very sought after because it is one of the series (S, N, T, W) in which the circles on the sub-dial can turn brown/chocolate, transforming into what is known as the “Patrizzi” dial among collectors. This piece is rated 9.5 out of 10, watch only. The circles started to turn brown. At its height, the normal, non-patrizzi dial version was selling at more than S$18000! Buy now to enjoy and even make money when the market goes up again!