NOS RARE Slava Transistor Vintage USSR Soviet 1st Gold Tuning Fork WORKING Video

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Seller Store saros_watch
(1825) 98.3%,

Location: Kiev
Ships to: US,
Item: 285157833309

All returns accepted:ReturnsNotAccepted
Bezel Color:Clear
Indices:12-Hour Dial
Year Manufactured:1960-1969
Gender:Men’s
Year of Manufacture:1960-1969
Serial Number:024977
Band/Strap:Bracelet
Case Color:Gold
Department:Men
Lug Width:18 mm
Watch Shape:Round
Age Group:Adult
Style:Vintage,Antique,Luxury
Case Size:33 mm
Features:12-Hour Dial
Case Material:Gold Plated
Movement:Tuning Fork
Water Resistance:Not Water Resistant
With Papers:No
Reference Number:Does Not Apply
2-MChZ Slava:2-MChZ Slava
Type:Wristwatch
Band Color:no
Band Material:no
Customized:No
Dial Color:Black
Slava Transistor:Slava Transistor
With Original Box/Packaging:No
Country/Region of Manufacture:Russian Federation
Display:Analog

Rare Wristwatch Slava Transistor HistoryThe history of the Slava watch dates back to 1924, from the founding of the Second Moscow Watch Factory.In the second half of the 1950s, a line of women’s wristwatches appeared. Later, mechanical and quartz watches, alarm clocks, pocket and wall clocks were produced under this name.The Soviet Union produced many interesting watches, but one of the most unusual was the Slava Transistor tuning fork.Nothing out of the ordinary, not even a calendar. However, the whole highlight is in the filling. This is the first Soviet « battery-powered » watch, and its principle of operation is completely different from modern quartz watches.There is a legend that during Khrushchev’s visit to the United States he was presented with the newest Bulova Accutron watch model. This watch was a real breakthrough of that time – the first serial electronic watch in the world! Amazing accuracy – ± 2 sec per day! Nikita Sergeevich was impressed, and upon his return to the USSR he ordered the production of similar watches. But, again, this is just a legend. Be that as it may, in 1962 the Second Moscow Watch Factory produced the first batch of Soviet watches « Slava Transistor », which technically were a little less than a full copy of the Bulova Accutron.So what are tuning fork watches? As we know, a tuning fork looks like a two-pronged fork.When struck, the legs of the tuning fork begin to vibrate, with a frequency that depends on the elasticity of the material and the geometric shape of the legs. The ability to long, stable vibrations made it possible to use a tuning fork for tuning musical instruments and not only. It is this ability to stable oscillations of the tuning fork that has found application in the mechanism of the watch under consideration.Everyone is accustomed to the fact that the heart of the clock is the balance (in common people « pendulum »). The balance is spinning – the clock is ticking. Only in this watch, a tiny tuning fork acts as a balance. The technical implementation of this system is a fusion of mechanics and electronics, so sometimes such watches are called « hybrid ».The electrical part is a simple oscillatory circuit consisting of a transistor, a resistor, a capacitor, and two coils – a pulse one and an excitation one. At the ends of the legs of the miniature tuning fork, magnetic circuits and permanent magnets are installed.When the power was applied, the coils « started » the tuning fork, forcing it to oscillate at a fixed frequency of 360 Hz. On one of the legs of the tuning fork, a pusher was fixed, transmitting the oscillatory movements of the tuning fork to the ratchet mechanism. The ratchet running wheel was in constant engagement with other gears, driving the entire clockwork.The ratchet wheel deserves a special mention. This is a masterpiece of watchmaking, and probably the hardest part to make. The ratchet tooth was 0.025 mm wide and 0.01 mm high. The wheel itself was 2.4 mm in diameter and had 300 teeth. Three hundred. Zubiev. On a wheel with a diameter of 2.4 mm.The watch did not have a traditional crown; the hands were translated by a folding « earring » on the case back.When working, they emitted a barely audible buzz, more like a mosquito squeak. Also, such watches were characterized by a smooth, stepless movement of the second hand.The watch was powered by a 1.3V battery, had a gold-plated case, and generally looked quite stylish. But they did not find any special popularity, as their counterpart in the United States. By the beginning of the 70s, tuning fork watches were almost completely replaced by cheaper, more accurate, and easy-to-manufacture quartz watches, and their production was almost universally curtailed. The first tuning fork watches were released by Bulova Watch Co on October 10, 1960. The father of the first tuning fork was the outstanding Swiss engineer Max Hetzel. There were only 27 parts in the mechanism, and only 12 of them were moving. Accutron was very popular, it really was a technical miracle. The watch had an accuracy of plus or minus 2 seconds per day! Amazing accuracy at the time. In addition, Bulova Accutron is the first electronic watch in the world. For about 17 years, the leadership in “punctuality” has remained with Accurton. NASA in 1969 on the ship Apollo – 11 sent Accurton into space. Neil Armstrong and Buzz Aldrin delivered the watch to Sea of Tranquility on the Moon.According to Mark Gordon, Khrushchev brought a Bulova back with him from the USA and asked the Soviet engineers to make one like it. Less than 2500 watches were made before the production stopped due to quality problemsIn the Soviet Union, it was decided to make its own version of tuning fork watches. The 2-MChZ (Second Moscow watch factory) in 1962 released Slava Transistor in caliber 2937. The fair in Leipzig brought this watch a gold medal. The watch did not have a traditional crown, the hands were translated by a folding “earring” on the case back. Actually like the Accutron Spaceview.The watch has an original gold plated case and back stainless steel cover. On face side, dome glass is plastic. To the watch a watchband is added in a gift. This unique watch was kept till our time in good condition. Getting such thing you do good capital investment. Every year the price for them will increase only! This watch is a stylish acquisition for collectors, 100% satisfaction, and good present!Technical information:Diameter of the case: 33 mmDiameter of the dial: 29 mmThickness: 13 mmBand size: 18 mm PLEASE ASK ANY QUESTION All items are old or original – I do not sell counterfeits. Dear Buyers, read carefully before making bids! Please look through all photos and read all description – you buy exactly what you see on the photos. Photos are real! Before bidding – please take a firm decision that you really need this item! I respect and follow to eBay Contracts and Rules and I expect the same from you, my buyers! If you have any questions – please email me before bidding. Please check out my other items in my store. Also view my feedback! By making a purchase in this store, you will restore the Ukrainian business. Orders are sent from a relatively safe region of Ukraine. Good luck! I will send this item from Ukraine, via USPS after the payment. 12.00 $ Please note that due to the situation in the world, delivery may take 2-8 weeks. I will send this item from Ukraine EMS after the payment. 25.00 $ Please note that due to the situation in the world, delivery may take 1-2 weeks. Mail now works slowly, but all orders are finally delivered. I combine items so that you can save on shipping by ordering two or more lots. Items are well packaged. I’m glad that you are interested in lots that I sell. Wish you a good shopping.

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