Maritime Radio Silence Ships Bulkhead Clock, Wall, Kappa-Korea, Vintage Nautical Salvage 

This clock would have been used aboard an ocean-going vessel that has since been decommissioned.

Dated around 1980's

Brief Explanation of Radio Silence Clocks: Tragically, the radio-signalling equipment carried by RMS Titanic was of little use, since the distress signals sent after hitting an iceberg in 1912 went unheard for several hours. The disaster spurred an international review of maritime safety which made several recommendations, one of which led to the introduction of radio silence periods. These are three-minute periods immediately following each quarter hour reserved exclusively for making, and listening for, distress calls. The blue sectors represent silence periods on the SSB (Single Side Band)) distress frequency of 2182kHz, as carried by commercial and some pleasure craft. The red sectors are for Morse code distress signals on the 500kHz band, as used in radio telegraphy. Radio room clocks have traditionally been marked with the sectors as guidance for the operators.

Manufactured by Kappa - Korea, with a technical collaboration with Seiko of Japan. 

Most clocks used onboard ship usually run off a central electrical slave system – so that every clock tells the same time! The original mechanism has been replaced with a modern quartz movement, which takes a standard AA battery. 

Steel case, with enamel grey paint finish, with chrome bezel.

Working order.

Good used condition for age and application, with some wear and marks.

Multiple additional clocks are available, identical and in different designs.

21cm diameter x 8cm deep approx

KAPPA CLOCK(SHINYOUNG PRECISION CO., LTD.) is a South Korea company

Please note that I have multiples of this type of clock, so you may not necessarily receive the exact clock as photographed, but it will be the same design and comparable condition.