The sinking of the RMS Titanic occurred on the night of 14 April through to the morning of 15 April 1912 in the North Atlantic Ocean, four days into the ship's maiden voyage from Southampton to New York City. The largest passenger liner in service at the time, Titanic had an estimated 2,224 people on board when she struck an iceberg at around 23:40 (ship's time) on Sunday, 14 April 1912. Her sinking two hours and forty minutes later at 02:20 (05:18 GMT) on Monday, 15 April resulted in the deaths of more than 1,500 people, which made it one of the deadliest peacetime maritime disasters in history.
AS A DIRECT RESULT OF THIS TRAGIC ACCIDENT CONGRESS ENACTED IMMEDIATE LEGISLATION.
Hence the birth of the Radio Act of 1912 (37 Stat. 302), which is a United States federal law that mandated that all radio stations in the United States be licensed by the federal government, as well as mandating that seagoing vessels continuously monitor distress frequencies. The original bill was initiated during the investigations following the sinking of the Titanic. The act set a precedent for international and federal legislation of wireless communications.
Because of the need to comply with the Radio Act of 1912, which required a 24-hour radio watch at sea, The CHELSEA CLOCK Company created and led a clock design featuring two 3-minute periods highlighted in red to mark a silent period when only emergency radio messages could be transmitted. Two green markings designate silent periods during which time one would listen for coastal distress signals.
Over the years Chelsea has produced thousands of these types of clocks according to U.S. government specifications for use aboard military vessels.
You can become a part of history and get your very own BRAND NEW CHELSEA - 6" Dial Radio Room Clock.
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The Radio Room Clock case is made from phenolic - a high-impact, heat-resistant black resin that stands up to time and the elements. Likewise, the lens is crafted from a durable, shatter-proof clear polycarbonate resin. Its hinged bezel and brass screw-bolt lock offers easy access for adjustments. The Radio Room Clock mounts to most any surface and includes matching black mounting hardware.
Note: The disaster also led to this clock design, which features two 3-minute periods marked in red, indicating Morse Code silence periods when only distress, urgent, and safety signals could be transmitted. Two green markings, likewise, designate silent periods on voice transmissions, where one would listen for or transmit distress signals. All ships and coastal stations kept a mandatory listening watch for such signals.