In a famous murder case, the Rolex on Ronald Platt's wrist eventually led to the arrest of his murderer, Albert Johnson Walker--a financial planner who had fled from Canada when he was charged with 18 counts of fraud, theft, and money laundering. When the body was found in the English Channel in 1996 by a fisherman named John Coprik,[31] a Rolex wristwatch was the only identifiable object on the body.[31] Since the Rolex movement had a serial number and was engraved with special markings every time it was serviced, British police traced the service records from Rolex and identified the owner of the watch as Ronald Platt. In addition, British police were able to determine the date of death by examining the date on the watch calendar. Since the Rolex movement was fully waterproof and had a reserve of two to three days of operation when inactive, they were able to determine the time of death within a small margin of error.
