Serviced Vintage 1968 JAPAN SEIKO LORD MARVEL 36000 5740-8000 23J Hand-winding.

Serviced Vintage 1968 JAPAN SEIKO LORD MARVEL 36000 5740-8000 23Jewels Hand-winding.Welcome to my auction!I am Japanese who live in Tokyo. Item description It's a SEIKO Hand-winding Watch, LORD MARVEL 36000 5740-8000 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 : 57 LORD MARVEL 36000bph .Caliber number : 5740C.Movement : Hand-winding.Beat rate : 36000bph.Year of manufacture start : 1967's.Factory : Suwa.Externals : Serial number : 823246.Dial number : JAPAN 5740-8020T AD.Glass : Acrylic.Case size : About 34.5mm.Lug width : 19mm.Band : New Leather Strap of SEIKO original.Condition : Used, it runs well.The day difference time of an used watch is about +-1 minute / day.Overhaul service in July 2026.The movement has been cleaned and oiled, so it works fine.Key Features The Milestone of Space-Age 10-Beat Innovation (1968): In **1968**—a monumental historic year defined by rapid lifestyle modernization and peak industrial confidence—the **Seiko Lord Marvel 36000** represented the absolute pinnacle of high-frequency mechanical horology. Sourced from the **Daini Seikosha (Kameido)** factory under reference **5740-8000**, this legendary model was Japan's first-ever commercial **10-beat (36,000 vibrations per hour)** wrist instrument. Explicitly built to challenge the accuracy hegemony of Swiss elite houses, it stood as a definitive badge of technological defiance and corporate pride during the height of the Showa industrial boom. The Historic 23-Jewel Caliber 5740C High-Beat Engine: This masterpiece is powered by the magnificent **23-jewel Caliber 5740C**, widely revered by vintage purists as one of the greatest manual-wind calibers ever constructed. Operating at a blistering **10 beats per second**, this over-engineered movement tamed the immense kinetic friction of high-frequency operation by deploying premium synthetic rubies and advanced micro-lubrication across its gear train pivots. The extreme structural stability of this architecture allowed Seiko to dominate international chronometer trials and paved the technical path for the iconic Grand Seiko Hi-Beat series. Architectural ""8000"" Grammar of Design Case Mastery: The reference **5740-8000** is globally celebrated among vintage enthusiasts for its commanding yet understated dress proportions. The solid stainless steel case implements Taro Tanaka's foundational **""Grammar of Design""** philosophy with remarkably sharp, geometric facets and robust, beautifully tapered lugs finished with zero-distortion mirror polishing. Featuring a low center of gravity and a flat, modern profile, this tailored housing sits perfectly flush against the wrist, sliding effortlessly under a executive shirt cuff. Absolute Symmetrical Purity of the Non-Date Dial: By completely omitting the constraints of a day or date calendar wheel, the dial of the **5740-8000** achieves a breathtaking level of **immaculate visual balance and timeless symmetry**. The radiant silver sunburst canvas features **hand-applied, multifaceted elongated baton indices** and razor-sharp hands that track time with clinical, sweeping precision. The applied, interlocking **""36000"" numbers** sitting proudly above 6 o'clock serve as a powerful visual certification of its internal elite velocity. A Sovereign Cornerstone of Daini's High-Frequency Legacy: Manufactured in the historic milestone year of **1968**, the 5740-8000 23-jewel variant remains a universally coveted ""holy grail"" for serious vintage collectors worldwide. It represents the perfect historical intersection where traditional high-end Japanese case finishing met a world-shaking mechanical revolution right before the quartz transition. Built to an uncompromising heirloom standard, it emits an iconic, ultra-fast industrial buzz that stands as a profound testament to an era when Japan perfected the luxury hand-wound instrument. 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 Hand-winding Watch, LORD MARVEL 36000 5740-8000 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!