Rolex Oyster Tru-Beat 6556 Silver Crosshair Dial

On Hold

The forgotten doctors’ watch…

This is a very rare and important vintage Oyster that dates to the 1950s. One of the rarest Rolex complications out there. Only created in a short period.

The ‘Tru-Beat’ was one of the first dead-seconds wristwatches 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. 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.
This watch still has the deadbeat second hand movement and the 1040 movement is still fully working. 

Check out our video we created on this beauty... here.

The case remains in great condition.

The silver dial remains in excellent original condition and the watch has a blued seconds hand. The rivet link Oyster bracelet reference 7205 is in very good condition and has ref 57 endlinks and a clasp stamped ‘1 69’. The watch has been fully serviced by our watchmaker.


- Reference 6556
- 34mm steel case
- Serial 138xxx dating to 1955
- Fully functioning 1040 movement with dead beat second
- Sliver dial with cross hair
- Blued 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

Our Service

Each vintage timepiece is individually selected and carefully inspected by our team of experts. After we buy a watch it is mechanically inspected and fully checked by our watchmaker. If necessary, the movement will be fully serviced and tested to ensure it is running to our exacting standards.

We will always describe the watch as fully as we can in our sales texts. Our zoomable images are of the highest possible quality and form an important part of each watch’s description. We will never hide or cover up any element of any watch we sell.

Key to our unparalleled service is Fedex Priority shipping, fully insured. Once you have received your watch, we encourage you to inspect it thoroughly. If you are not 100% satisfied, please let us know. We offer a 14 days return policy. Simply return the watch to get a full refund of the original purchase price.

Our Warranty

We offer a one-year warranty on the mechanical function of the watch, starting from the day of purchase. We do not guarantee the waterproof nature of any (vintage) watch, unless expressly made in writing. Therefore, our warranty will not cover any damage done to the case and/or movement by water or moisture entering the watch. Our warranty does not apply to accidental damage or mishandling of your watch and does not extend to the bracelet, case parts (including pushers, winding stem, crown and bezel), watch glass, dial and hands.

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.

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