Radio Room Clock: What It Is and How It Works

Vostok Amphibia Radio Room watch

The radio room clock is a special shipboard clock used in the radio rooms of ships. Its purpose is to indicate periods of radio silence, during which it is forbidden to transmit or receive radio signals.

Why is radio silence necessary?

Radio silence is necessary to avoid interference with the transmissions of other ships or radio stations. These interferences can cause communication, navigation, or safety problems.

How does the radio room clock work?

The dial of the radio room clock is divided into two colored sectors: red for telegraph silence and green (or a different shade of red) for radio silence..

  • Telegraph silence lasts three minutes and starts 15 and 45 minutes after each hour.
  • Radio silence lasts three minutes and starts 0 and 30 minutes after each hour.

A curiosity

An ancient seafaring legend tells that, in the past, sailors used another technique to indicate periods of radio silence. This technique consisted of ringing a bell three times, at three-minute intervals.


The radio room clock is an important tool to ensure the safety and efficiency of radio communications at sea.

Other details

In addition to its main function of indicating periods of radio silence, the radio room clock can also be used to indicate the current time, date, and position of the ship.

Some radio room clocks also have additional features, such as a chronograph or a timer.

The radio room clock is an iconic object in maritime culture. It is a symbol of tradition and innovation, and it represents the importance of radio communications for navigation.

Additional details

The radio room clock is typically located in the radio room of a ship. It is used by the ship’s radio operators to ensure that they do not transmit or receive radio signals during periods of radio silence.

The radio room clock is a relatively simple device, but it is an essential part of maritime safety. It helps to ensure that ships can communicate effectively with each other and with shore stations, and it helps to prevent accidents and collisions at sea.

Vostok Komandirskie 436942 EMERCOM Watch Review

Vostok Komandirskie 436942 EMERCOM


In this article, I will review the Vostok Komandirskie 436942, a classic model produced by the Chistopol factory in Russia. The watch is available for purchase on the online store, an authorized dealer of Vostok watches.

Technical specifications

The watch has a brass case with a new type of titanium oxocarbonitride coating that gives it a pleasant matte gray metallic appearance. The dial is matte black with the Cyrillic abbreviation “мчс России” which means Ministry of Emergency Situations and the English word “EMERCOM”.

Vostok Komandirskie 436942 EMERCOM

The dial also features a compass rose. The steel caseback features the double-headed eagle, the symbol of the Russian Ministry of Emergency Situations.

Vostok Komandirskie 436942 EMERCOM
Vostok Komandirskie 436942 EMERCOM

It is powered by a Vostok 2414 manual-winding movement with 17 jewels. The power reserve is 36 hours and the recommended service interval is every 10 years. The watch has a thermoformed acrylic crystal and a water resistance rating of 20 meters.

Vostok Komandirskie 436942 EMERCOM
Vostok Komandirskie 436942 EMERCOM

Relationship with the Ministry of Emergency Situations

The Russian Ministry of Emergency Situations is a government agency responsible for dealing with natural and man-made disasters. The Vostok Komandirskie 436942 is a commemorative model of the ministry.

mchs Emercom russian patch
mchs Emercom russian patch

Value for money

The Vostok Komandirskie 436942 offers excellent value for money. The watch is well-built and has a classic design. The purchase price is less than $60. The price may vary over time.

It is possible to purchase this watch by clicking on the image below to support content creation:


The Vostok Komandirskie 436942 is an excellent choice for anyone looking for a classic and reliable watch at an affordable price.

Follow me on TikTok

If you enjoyed this review, I invite you to follow my TikTok channel, where I talk about Soviet watches and other objects related to the history and culture of the Soviet Union.


Raketa World Timer: Let’s Explore the World Together!

russian watch Raketa World Time

The Raketa World Timer watch is seriously cool because it allows you to time travel without leaving your couch. With this city bezel, you can see what time it is around the world with just one glance. In this article, we’ll take a look at the cities that stand out on the Raketa watch and find out their current names, time zones, and some cool tourist tidbits.

russian watch Raketa World Time
Raketa World Time

London (Лондон)

Country: United Kingdom

Time Zone: GMT (Greenwich Mean Time) +0

London is a brilliant city in the United Kingdom. There’s Big Ben, the Queen, and loads of history.

Geneva (Женева)

Country: Switzerland

Time Zone: CET (Central European Time) +1

Geneva is where all the banks and diplomacy stuff happens. Oh, and there’s a stunning lake too.

Moscow (Москва)

Country: Russia

Time Zone: MSK (Moscow Standard Time) +3

Moscow is the Russian capital with Red Square and the Kremlin. So much history!

Gorky (Горький)

Country: Russia

Time Zone: MSK (Moscow Standard Time) +3

Gorky, now called Nizhny Novgorod, is famous for its ancient architecture and great views.

Sverdlovsk (Свердловск)

Country: Russia

Time Zone: MSK (Moscow Standard Time) +3

Sverdlovsk, now Ekaterinburg, is another Russian city known for its history and old stuff.

Tashkent (Ташкент)

Country: Uzbekistan

Time Zone: UZT (Uzbekistan Time) +5

Tashkent is the capital of Uzbekistan, with delicious food and interesting history.

Novosibirsk (Новосибирск)

Country: Russia

Time Zone: KRAT (Krasnoyarsk Time) +7

Novosibirsk is the biggest city in Siberia and it’s famous for its entertainment and culture.

Irkutsk (Иркутск)

Country: Russia

Time Zone: IRKT (Irkutsk Time) +8

Irkutsk is near Lake Baikal and it’s perfect for nature lovers.

Yakutsk (Якутск)

Country: Russia

Time Zone: YAKT (Yakutsk Time) +9

Yakutsk is one of the coldest cities in the world, so be ready for some serious cold!

Vladivostok (Владивосток)

Country: Russia

Time Zone: VLAT (Vladivostok Time) +10

Vladivostok is a seaport city in the Russian Far East, with a super important location.

Magadan (Магадан)

Country: Russia

Time Zone: MAGT (Magadan Time) +11

Magadan is famous for its history connected to forced labor camps.

Petropavlovsk-Kamchatskiy (Петропавловск-Камчатский)

Country: Russia

Time Zone: PETT (Kamchatka Time) +12

Petropavlovsk-Kamchatskiy is located on a peninsula with volcanoes – super cool!

Anadyr (Анадырь)

Country: Russia

Time Zone: ANAT (Anadyr Time) +12

Anadyr is in the Chukotka region, really far away.

Samoa (Apia)

Country: Samoa

Time Zone: WST (West Samoa Time) +13

Samoa is a tropical paradise with fantastic beaches and Polynesian culture.

Honolulu (Гонолулу)

Country: United States (Hawaii)

Time Zone: HST (Hawaii Standard Time) -10

Honolulu is the capital of Hawaii, with wonderful beaches and a laid-back atmosphere.

Alaska (Аляска)

Country: United States (Alaska)

Time Zone: AKST (Alaska Standard Time) -9

Alaska is amazing with its breathtaking nature and outdoor adventures.

San Francisco (Сан-Франциско)

Country: United States (California)

Time Zone: PST (Pacific Standard Time) -8

San Francisco has the Golden Gate Bridge, Alcatraz, and delicious food.

Denver (Денвер)

Country: United States (Colorado)

Time Zone: MST (Mountain Standard Time) -7

Denver is growing big time and it’s surrounded by the Rocky Mountains. Awesome!

Chicago (Чикаго)

Country: United States (Illinois)

Time Zone: CST (Central Standard Time) -6

Chicago is famous for its architecture, blues music, and incredible food.

New York (Нью-Йорк)

Country: United States (New York)

Time Zone: EST (Eastern Standard Time) -5

New York is the city that never sleeps, with skyscrapers, world-class museums, and wild nightlife.

Buenos Aires (Буэнос-Айрес)

Country: Argentina

Time Zone: ART (Argentina Time) -3

Buenos Aires is the capital of Argentina, famous for tango and great food.

Rio de Janeiro (Рио-де-Жанейро)

Country: Brazil

Time Zone: BRT (Brasília Time) -3

Rio de Janeiro has stunning beaches, Carnival, and a laid-back atmosphere.

Reykjavik (Рейкьявик)

Country: Iceland

Time Zone: GMT (Greenwich Mean Time) +0

Reykjavik is the capital of Iceland, surrounded by incredible natural landscapes.

Dakar (Дакар)

Country: Senegal

Time Zone: GMT (Greenwich Mean Time) +0

Dakar is the capital of Senegal, with African culture and fantastic music.

With the Raketa World Timer watch, you can travel through these amazing cities without leaving your home. Whether you’re a watch enthusiast or an explorer at heart, this watch is perfect for you. Discover the world in style!

russian watch Raketa World Time
Raketa World Time
russian watch Raketa World Time
Raketa World Time
0 Item | 0,00 
View Cart
Verified by MonsterInsights