Serviced Vintage 1975 JAPAN SEIKO LORD MATIC WEEKDATER 5606-8120 25J Automatic.

Serviced Vintage 1975 JAPAN SEIKO LORD MATIC WEEKDATER 5606-8120 25Jewels Automatic.Welcome to my auction!I am Japanese who live in Tokyo. Item description It's a SEIKO Automatic Watch, LORD MATIC WEEKDATER 5606-8120 25Jewels . 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 : 56 LORD MATIC WEEKDATER .Caliber number : 5606A.Movement : Automatic.Beat rate : 21600bph.Year of manufacture start : 1968's.Factory : Suwa.Externals : Serial number : 573471.Dial number : JAPAN 5606-8160T.Glass : Crystal.Case size : About 36mm.Lug width : 18mm.Band : Can be adjust the length.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 date : The set at one stage pulling the crown.The day difference time of an used watch is about +-1 minute / day.Overhaul service in August 2026.The movement has been cleaned and oiled, so it works fine.Key Features The Sovereign Benchmark of 1975 Executive Luxury (1975): Manufactured in **1975**—a pivotal historic year during Japan's peak post-war industrial era and mechanical watchmaking refinement—the **Seiko Lord Matic Weekdater** stood as the benchmark of accessible executive luxury. Born from the prestigious **Suwa Seikosha** factory under reference **5606-8120**, this mid-1970s flagship was positioned directly beneath the King Seiko series, offering near-chronometer-grade mechanical performance wrapped in striking, forward-looking Showa-era styling. The High-Performance 25-Jewel Caliber 5606 Automatic Heart: Powering this historic timepiece is the revered **25-jewel Caliber 5606**, an in-house automatic engine operating at a smooth frequency of **21,600 vibrations per hour (vph)**. Celebrated by vintage purists for its remarkably thin architecture and long-term daily stability, this caliber deployed a lavish **25-jewel specification** to control gear-train friction. It features modern executive functions including **hacking seconds**, quick-set dual calendar functionality, and smooth manual-winding capability. Architectural ""8120"" Cushion-Style Case Geometry: The reference **5606-8120** is globally distinguished among vintage collectors for its distinct, broad-shouldered case architecture. The solid stainless steel case features sharp, angular facets and sweeping, integrated lug lines finished with zero-distortion mirror polishing inspired by Taro Tanaka's **""Grammar of Design""** principles. This low center-of-gravity engineering allows the mechanical watch to sit completely flush against the wrist, sliding weightlessly under a tailored shirt cuff. Masterful ""Weekdater"" Dial Harmony and Bilingual Utility: The dial of the **5606-8120** is a study in 1970s visual balance, showcasing a radiant silver or textured canvas decorated with **hand-applied, multifaceted rectangular block indices** and razor-sharp hands. Symmetrically framed at 3 o'clock, the dual-calendar window houses a **bilingual (English/Kanji) day disk** alongside a quick-set date configuration, prioritizing instant split-second legibility for the globalizing workforce. An Investment-Grade Masterpiece of Suwa's Automatic Heritage: Manufactured in the milestone mechanical year of **1975**, the 5606-8120 25-jewel Lord Matic Weekdater remains a highly coveted, universally respected cornerstone reference for serious vintage Seiko collectors worldwide. It captures the exact historical moment where Suwa Seikosha perfected high-utility automatic daily instruments right before the global industry shifted toward digital quartz technology. Built to an uncompromising heirloom standard, it stands as an eternal testament to mid-1970s Japanese horological design. 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, LORD MATIC WEEKDATER 5606-8120 25Jewels .
It's in good uséd condition.
It's difficult to find this valuable watch in such a good condition. Highly recommended for SEIKO collectors!