A true exotic among Rolex watches, the Tru-Beat debuted in 1954 with the Calibre 1040, which ticked five times per second at 18,000 vibrations per hour. For this reason, a complex escapement was developed that reduced the five beats to just one beat. Rolex marketed the watch specifically for doctors and nurses, who could use it to more easily measure the pulse of patients.
| Information | |
| Brand: | Rolex |
| Series: | Oyster Perpetual "TRU BEAT" |
| Model Number: | 6556 |
| Serial Number: | Contact Us |
| Year: | 1956 |
| Retail: $ | Unknown |
| Gender: | Men's |
| Country of Manufacture: | Switzerland |
| Band | |
| Band Type: | Oyster Rivet Band |
| Band Material: | Stainless Steel |
| Band Color(s): | Steel |
| Clasp: | Fold |
| Max Wrist Size: | 7in |
| (How many screws in bracelet if Rolex): | N/A |
| Features | |
| Water Resistance: | 10 ATM |
| Functions: | Hours, Minutes, Seconds |
| Features: | N/A |
| Condition Report | |
| Overall Condition Report (1 to 10): | 8 |
| Box: | No |
| Papers: | No |
| Receipt: | No |
| Damages or Imperfections: | No |
| Type of Crystal: | Plastic |
| Type of Bezel: | Smooth |
| Condition of Bezel: | 8 |
| Condition of Lugs: | 8 |
| Condition of Head: | 8 |
| Condition of Bracelet/Band: | 8 |
| Original or Anything Altered: | Original |
| Other Notes: | N/A |
| Case | |
| Case Width: | 34mm |
| Case Material: | Stainless Steel |
| Case Shape: | Round |
| Case Back: | Solid |
| Movement | |
| Movement: | Automatic |
| Movement Caliber or Number: | 1040 |
| Power Reserve: | N/A |
| Is it Working ( or-) Time: | Contact Us |
| Are All the Parts Original and Correct: | Yes |
| Has This Been Inspected by Our Watchmaker: | Yes |
| Are All Functions Working Properly: | Tru Beat function no longer functions |
| Additional Info: | |
| Style: | Luxury Dress |
| Warranty: | No |
| PM Number: | PM4004760 |
| This has been inspected and approved by our jeweler and watchmaker. | |
