Rolex Oyster Tru Beat 6556 Silver Dial


The forgotten tool watch…

This is a very rare and important vintage Oyster that dates to themed 1950s.
The ‘Tru Beat’ was one of the first dead-seconds wrist watches ever offered.

Instead of the flowing seconds hand that one normally sees on a mechanical watch, dead-seconds calibres tick once per second. What sounds very simple is incredibly complicated and requires a new escapement that allows one jump per second of the seconds hand instead of the usual five ‘beats.

The watches were marketed as medical professionals to accurately calculate a patient’s pulse, which also explains the red seconds hand and cross hair dial (to see 15 second intervals at a glance). It is rare to see one of these watches survive as servicing is very complicated and parts scarce. It is said that even Rolex converted some to regular movements. The fact this this example remains in such outstanding condition and has had a recent service makes it an almost unique offering in the market. The rivet link Oyster bracelet reference 7205 is in excellent condition and has ref 57 endlinks and a clasp stamped ‘B’.


- Reference 6556
- 34mm steel case
- Serial 139xxx dating to 1955
- Sliver dial with cross hair
- Red seconds hand
- Oyster rivet bracelet reference 7205 with 57 endlinks
- Fully serviced by our watchmaker
- One-year mechanical warranty
- Includes a handmade leather watch pouch
- Free worldwide Fedex Priority shipping

We Love Watches

We are passionate about vintage watches and we love talking about them! That is why we don't sell our watches with a simple "Add to cart" button, but instead try to emulate a truly boutique experience online. Helping you find your perfect vintage watch is our Watch Department’s raison d’etre. Whatever you would like to ask, please do. Building our community of watch lovers is central to our mission at Bulang and Sons.

We Know Watches

At Bulang and Sons we have sold thousands of watches over the years. We are a small team of experienced collectors and connoisseurs who are all part of an extensive global network of buyers and sellers. We have a great reputation for offering only the highest quality watches. We have one simply rule: we only buy and sell watches we want to own ourselves. And yes, we are still collectors too.

We Guarantee Watches

As collectors, we know how intense the search for a specific vintage watch can be. Once you find it at Bulang and Sons, we want to make things easy, safe and fast for you. Therefore, we offer the most comprehensive return policy and warranty; you will not find a safer place on the internet to buy a vintage watch. You can relax and enjoy your deal with Bulang and Sons.

Customer Reviews

Be the first to write a review

You may also like