Vintage 1969 JAPAN SEIKO LORD MATIC WEEKDATER 5606-9030 23Jewels Automatic.

Vintage 1969 JAPAN SEIKO LORD MATIC WEEKDATER 5606-9030 23Jewels Automatic.

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

Item description

Movement :

• Pet name : 56 LORD MATIC WEEKDATER .
• Caliber No. : 5606A.
• Movement : Automatic.
• Beat rate : 21600bph.
• Year of manufacture start : 1968's.
• Factory : Suwa.

Externals :

• Serial No. : 955974.
• Dial No. : JAPAN 5606-9050T.
• Glass : Crystal.
• Case size : About 38.05mm.
• Lug width : 19mm.
• Band : New Leather Strap.

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.
• For practical, everyday use, it would be advisable to have the movement cleaned and oiled.

Key Features

• The Sovereign Peak of Late-60s Executive Luxury (1969): Manufactured in 1969—a historic milestone year defined by the moon landing and Japan's peak mechanical watchmaking boom—the Seiko Lord Matic Weekdater reference 5606-9030 represented Suwa Seikosha's quintessential business-class flagship. Designed to offer rising corporate executives high-grade mechanical performance paired with sleek, forward-looking dress watch styling, it remains a cornerstone reference of the Showa era.
• The Over-Engineered 23-Jewel Caliber 5606 Automatic Heart: Powering this landmark timepiece is the revered 23-jewel Caliber 5606, an in-house automatic engine operating at a smooth frequency of 21,600 vibrations per hour (vph). Highly respected by vintage purists for its remarkably thin profile and daily rate stability, this movement deploys a 23-jewel specification to minimize gear-train friction, complete with hacking seconds, quick-set dual calendar functionality, and smooth manual-winding capability.
• Architectural ""9030"" Grammar of Design Cushion Case: The reference 5606-9030 is globally distinguished among vintage Seiko collectors for its elegant, softly contoured cushion-style stainless steel case. Executed with sharp angular facets, broad brushed surfaces, and zero-distortion mirror-polished Zaratsu edge bevels inspired by Taro Tanaka's ""Grammar of Design"" principles, the ergonomic low-profile case sits remarkably flat and flush against the wrist.
• Masterful ""Weekdater"" Dial Harmony and Bilingual Utility: The dial of the 5606-9030 showcases exemplary late-1960s visual balance, featuring a radiant silver sunburst canvas set with hand-applied, multifaceted rectangular block indices and sharp hands for high-contrast legibility. Symmetrically framed at 3 o'clock, the dual-calendar window houses a bilingual (English/Kanji) day disk alongside the quick-set date wheel, offset by the applied polished ""LM"" emblem above 6 o'clock.
• An Investment-Grade Masterpiece of Suwa's Automatic Heritage: Manufactured during the milestone mechanical year of 1969, the 5606-9030 23-jewel Lord Matic Weekdater remains an exceptionally clean, highly sought-after cornerstone reference for serious vintage Seiko collectors worldwide. Capturing the precise historical moment where Suwa Seikosha perfected ultra-thin, high-utility automatic dress watches right as the quartz revolution began, it stands as an eternal heirloom of Japanese horological history.

For more information, please look at the pictures.

Notes

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