Hello watchex buddies! Here's one of the rarest Rolexes for your consideration. It's almost impossible to find one in perfectly working condition at a good price. Here's your chance to grab a museum/heirloom level watch at a great price! Rolex developed the worlds first true seconds wristwatch in the early 1950s, designed for doctors to get accurate pulse readings. Before that, dead beat seconds complication was only available in pocketwatches. And this was the time well before quartz watches came into existence. [VIDEO](https://imgur.com/a/Qu6rw10) The reference 6556/6558(non COSC) stayed in production until 1958 and was discontinued due to the lack of buyers, which makes this watch a very rare find and kind of a unicorn for the collectors. Most of these cal. 1040s were stripped off of their dead beat seconds complication by watchmakers often due to the unavailability of parts related to the DBS complication or sometimes to avoid working on an alien and delicate complication This watch came back last month from a long and expensive service trip from Europe after almost 16 months. Timekeeping, function, and accuracy are up to the mark. Comes with original, full link and surprisingly tight rolex rivet bracelet. Acrylic crystal is original to the watch and only has one scratch between 1 and 2 hour markers. It's easily removable. I preferred it to stay as is. Asking an extremely reasonable $19500 or best offer, which includes shipping charges and any other taxes or fees related to this sale. Comps with refinished dials are >$25k.