Rolex SD4K limited production
the SD4k reminds me of the short run transitional 16660. We will see in the future if gains the same following. The thick and even case has never been polished and looks worn sparingly. The black ceramic bezel is excellent showing no visible we. The glossy black luminova dial is excellent showing no visible wear. The original factory hands are matching. The fully linked Glidelock Oyster bracelet is excellent showing no stretch.