Description
Citizen World Time quartz alarm clock
MADE IN JAPAN The Citizen Legacy: A Pioneer of Precision Founded in 1918, Citizen is now one of the largest watch and movement groups in the world. The Japanese brand is known for its highly accurate and reliable Eco-Drive solar-powered watches. The Citizen group owns Bulova, Alpina, Frederique Constant, and Arnold & Son, as well as movement manufacturers Miyota and La Joux-Perret.
About the World Time Line
A world-time clock answers one question at a glance: what time is it over there? Instead of a plain 12-hour dial, the face carries a ring of city names around its edge and a small rotating 24-hour disc at the centre, printed with a world map. With the disc set, you can read the local time in every zone from Reykjavik and London round to Tokyo, Auckland and Honolulu, with the International Date Line marked at the bottom.
This Citizen is the desk version of that idea: a quartz alarm clock in a half-moon case, made in Japan, for the person who talks to colleagues, family or customers on the other side of the planet.
About This Clock
A Citizen quartz alarm table clock in a half-moon case, finished in gold tone with stepped, ribbed arcs sweeping across the top left and a slim bright bar arching over the right. The black dial is printed in white with a ring of city names (London and Reykjavik under GMT at the top, Moscow, Tokyo, Sydney, Los Angeles, New York and many more around the edge), a “World Time” script at lower left and “CITIZEN QUARTZ ALARM” at lower right.
At the centre, a gold-tone ring with a world map turns to set the zone. It carries a 24-hour scale with day and night halves. Above it run the gold hour and minute hands, a slim seconds hand and a thin alarm hand with a red arrow tip. The back panel is marked NO. 8RW600 and JAPAN, and holds the ON/OFF alarm switch, the alarm speaker, three setting knobs (alarm, time and the world-time disc) and the battery compartment. A paper label on the base names the maker as Rhythm Watch Co., Ltd. (リズム時計工業株式会社), the Japanese clockmaker that built Citizen-branded clocks. The clock carries no readable production date, so we do not put one on the listing.
Functions and How It Works
The clock does three things at once: local time on the outer chapter ring, the time in every other zone on the 24-hour world-time disc, and an alarm with its own switch.
Local time is read in the ordinary way. The fixed brushed ring carries XII, III, VI and IX with batons between them, and the two gold hands run against it.
World time is read on the two rings inside. The black outer dial carries the city names in time-zone groups, running westward clockwise from GMT, Reykjavik and London at the top, round through New York, Los Angeles and Honolulu to the International Date Line at the bottom, then back up past Tokyo, Calcutta and Moscow. Inside them turns the world-time disc: figures 1 to 24 over a band that is dark across the night hours and light across the day, with the world map at the centre and the Date Line drawn as a dashed line. With the disc set, each city group lines up with one of the 24-hour figures, so reading straight inward from any city gives the hour there, and the dark or light band behind it says whether that city is in daylight.
The controls are all on the back panel. A recessed slide switch turns the alarm ON and OFF, and the alarm sounds through the round grille beside it. Below sit three knobs: the left one marked ALARM, the middle one marked with a pair of clock hands, which sets the time, and a third, marked only with a turning arrow, which positions the world-time disc. The battery compartment underneath takes a single AA cell.
Technical Specifications
- Brand: Citizen
- Line: World Time
- Model Number: 8RW600 (marked on the back)
- Type: Table clock with alarm
- Movement: Quartz
- Power: One AA battery (not included)
- Dimensions: 270 mm wide × 150 mm high × 75 mm deep
- Case: Half-moon, gold-tone finish, plastic back panel
- Dial: Black, white city names, rotating 24-hour world-time disc with world map, red-tipped alarm hand
- Dial Text: “World Time”, “CITIZEN QUARTZ ALARM”
- Alarm: Yes, with ON/OFF switch on the back
- Maker: Rhythm Watch Co., Ltd. (label on the base)
- Country of Manufacture: Japan
Condition Report
The dial is clean and crisp. The gold-tone finish shows light surface wear and a few small marks from age. The back panel is clean and all three knobs and the alarm switch are present. See the photos for exact condition.
This clock has recently been serviced by a professional watchmaker and keeps good time.
Runs on one AA battery (not included).
This clock ships from 🇺🇦 Ukraine with tracking number
Why Collectors Want This Clock Today
It is a useful piece of desk design. The half-moon case with its stepped gold arcs has a distinctly late-twentieth-century look, and the black dial with the world map is easy to read across the room. It suits a home office, a travel-themed shelf or anyone who keeps track of far-away time zones. Citizen made many world-time products, so this is not presented as a rarity; it is a good-looking, working quartz alarm clock from a respected Japanese maker.
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We guarantee the item you receive looks and works exactly as advertised — or your money back.
About the watch factory
The Spirit of Innovation: The Citizen Legacy Founded in 1918 with the mission of creating timepieces that are “Citizens” of the world, the Citizen Watch Company has spent over a century redefining the boundaries of horology. From its origins as the Shokosha Watch Research Institute, the brand has remained steadfast in its philosophy: “Better Starts Now.” This belief—that it is always possible to make something better—transformed a local Japanese workshop into a global powerhouse of precision and craft. By controlling the entire manufacturing process in-house, from the individual components to the final assembly, Citizen ensures an uncompromising standard of quality that few manufacturers on earth can match.
What truly sets Citizen apart is its relentless pursuit of pioneering technology paired with environmental consciousness. The brand made history by introducing the world’s first light-powered analogue watch — the Crystron Solar Cell of 1976, the technology Citizen later branded Eco-Drive, which eliminated the need for battery replacements and forever changed the industry’s approach to sustainability. Beyond its eco-friendly milestones, Citizen’s history is decorated with “world firsts,” including the first professional diving watch with an electronic depth sensor and the most accurate satellite-synchronized timekeeping systems. When you wear a Citizen, you aren’t just wearing a watch; you are wearing a piece of history engineered for the future. Why Choose Citizen?
- In-House Manufacturing: Citizen designs and builds its own movements — its Miyota calibers are among the most widely used in the world.
- Built to Last: Citizen engineered its 1960s–70s calibers to be serviced rather than discarded, which is why so many are still keeping good time today.
- Heritage of Firsts: The first light-powered analogue watch (1976, the technology that became Eco-Drive), the first dive watch with an electronic depth sensor, and satellite-synchronised timekeeping.
