Vintage 1971 JAPAN SEIKO CHRONOGRAPH 7018-7000 23Jewels Automatic.

Vintage 1971 JAPAN SEIKO CHRONOGRAPH 7018-7000 23Jewels Automatic.Welcome to my auction!I am Japanese who live in Tokyo. Item description It's a SEIKO Automatic Watch, CHRONOGRAPH 7018-7000 23Jewels . It's in good used condition. It's difficult to find this valuable watch in such a good condition. Highly recommended for SEIKO collectors! Movement : Pet name : 70 SEIKO CHRONOGRAPH (WEAK DATA) .Caliber number : 7018A,B.Movement : Automatic.Beat rate : 21600bph.Year of manufacture start : 1971's.Factory : Kameido.Externals : Serial number : 195265.Dial number : JAPAN 7018-7001S.Glass : Crystal.Case size : About 37.7mm.Lug width : 18mm.Band : New Leather Strap of SEIKO original.Condition : Used, it runs well.Quick set(Day/Date) : Okay. Set the day of the week can be in English or Kanji. Set of the days of the week: Press strongly the crown.Set of the date : The set at one stage pulling the crown.The day difference time of an used watch is about +-1 minute / day.For practical, everyday use, it would be advisable to have the movement cleaned and oiled.There is a slight discrepancy when the second hand is reset.Key Features The Pioneer of 1971 Daini Flyback Chronograph Technology (1971): Manufactured in **1971**—a golden historical year of intense rivalries between Swiss and Japanese watchmakers—the **Seiko Chronograph (7018-7000)** stood as an absolute engineering triumph. Sourced from the prestigious **Daini Seikosha (Kameido)** factory, this high-grade instrument introduced a spectacular level of micro-engineering. Best known for its deployment in the iconic **""Time Sonar""** and elite **""Speed-Timer""** series, it brought avant-garde, racing-inspired high-utility luxury to the ambitious professionals of the Showa era. The Over-Engineered 23-Jewel Caliber 7018 Automatic Engine: This masterpiece is powered by the highly revered **23-jewel Caliber 7018**, a premium automatic chronograph movement operating at a stable frequency of **21,600 vibrations per hour (vph)**. Highly celebrated by vintage collectors for its exceptionally compact architecture, this caliber packed elite features like a **column wheel (pillar wheel)** and an advanced **vertical clutch system** into an incredibly slim profile. By utilizing a high-jeweled **23-jewel layout**, Daini achieved magnificent daily timing stability and minimized gear-train wear. The Advanced Instantaneous Flyback and Sub-Register System: A defining technical characteristic of the Caliber 7018 is its highly sophisticated **""Flyback"" complication**. By depressing the reset pusher at 4 o'clock while the chronograph was running, the user could instantly return the sweep seconds hand and the **30-minute register** back to zero and immediately restart timing without stopping the mechanism first. It features a dual-calendar window at 3 o'clock housing a **bilingual (English/Kanji) day disk** alongside a quick-set date configuration. Architectural ""7000"" Translucent Case Back and Dial Design: The reference **7018-7000** is globally coveted among elite vintage purists for its dramatic, futuristic styling. Most famously, this reference family integrated a revolutionary **tinted translucent mineral glass case back**, allowing owners to visibly watch the internal automatic rotor and balance wheel rotate. The dial is a masterclass in sport-racing balance, showcasing a rich dark canvas decorated with a high-contrast sweeping orange chronograph hand, multifaceted indices, and a tachymeter scale. An Investment-Grade Masterpiece of Kameido's Racing Legacy: Manufactured in the milestone year of **1971**, the 7018-7000 remains one of the rarest, most historically significant automatic chronographs globally. It represents the ultimate intersection where Daini's legendary engineering met 1970s space-age pop-art aesthetics and complex mechanical utility right before the industry transitioned into electronic quartz. Built to an uncompromising heritage standard, it stands as an eternal testament to an era when Japan perfected the high-performance mechanical chronograph. For more information, please look at the pictures. Notes Before buying.The vintage watches we sell are inspected and adjusted so they work fine. However, since it is an vintage watch, Please purchase on the assumption that it will be repaired. To prevent shipping accidents.Please monitor the tracking number until the item arrives and if it stagnates, please investigate at your country post office. Also, please confirm the item when you receive the item. About import taxes.Taxes such as import duties and VAT are not included in the item price or shipping charges, except for items shipped to the US. When you purchase, you will likely be required to pay these fees in your country. About Payment, Shipping, Return.Payment, Shipping, Return are in accordance with eBay's business policies.

It's a SEIKO Automatic Watch, CHRONOGRAPH 7018-7000 23Jewels .
It's in good uséd condition.
It's difficult to find this valuable watch in such a good condition. Highly recommended for SEIKO collectors!