Serviced Vintage 1976 JAPAN SEIKO LORD MARVEL 36000 5740-8000 23J Hand-winding.

Serviced Vintage 1976 JAPAN SEIKO LORD MARVEL 36000 5740-8000 23Jewels Hand-winding.

Welcome to my auction!
I am Japanese who live in Tokyo.

Item description

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 : 610444.
• Dial number : JAPAN 5740-8020U.
• 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 October 2026.
  The movement has been cleaned and oiled, so it works fine.

Key Features

• Japan's Historic 10-Beat High-Frequency Triumph (1976): Manufactured in 1976—during the final production years of Seiko's iconic high-frequency manual-wind era—the Seiko Lord Marvel 36000 reference 5740-8000 represents the end of an elite mechanical legacy. Born from the Suwa Seikosha factory, this legendary dress watch made horological history as Japan's very first 10-beat (36,000 vph) wristwatch series, serving as a mechanical proving ground for high-beat Grand Seiko and King Seiko models.
• The Revolutionary High-Beat 23-Jewel Caliber 5740C Engine: Powering this historic instrument is the legendary 23-jewel Caliber 5740C, an in-house manual-wind movement operating at a blistering frequency of 36,000 vibrations per hour (10 beats per second). By doubling the standard oscillation rate of traditional mid-century movements, the 5740C achieved incredible rotational inertia and chronometric stability, producing an iconic, ultra-smooth sweep second hand motion that fascinated collectors globally.
• Architectural ""8000"" Grammar of Design Case Geometry: The reference 5740-8000 is globally distinguished among vintage purists for its strict adherence to Taro Tanaka's ""Grammar of Design"" philosophy. Executed in solid stainless steel, the case features bold angular lugs, crisp flat planes, and mirror-polished Zaratsu surfaces engineered to reflect light without distortion, ensuring a flat, comfortable, low-profile fit against the wrist.
• Immaculate Non-Date Dial Harmony and Pure Typography: The dial of the 5740-8000 is a masterclass in mid-century visual symmetry and functional restraint, featuring a brilliant sunburst canvas free from date window interruptions. It showcases hand-applied, multifaceted hour indices and sharp hands, proudly bearing the applied metal ""SEIKO"" logo alongside printed ""LORD MARVEL"", ""36000"", and Suwa Seikosha star emblem typography above 6 o'clock.
• An Investment-Grade Milestone of Global Mechanical Heritage: Produced in 1976 as a late-era production model, this 5740-8000 Lord Marvel 36000 remains one of the most historically significant and universally respected mechanical Seiko references ever created. Capturing the final golden years of pure high-frequency manual-wind engineering, it stands as an eternal, heirloom-quality cornerstone for serious collectors worldwide.

For more information, please look at the pictures.

Notes

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