Vintage 1970 JAPAN SEIKO LORD MATIC WEEKDATER 5606-7130 23Jewels Automatic.

Vintage 1970 JAPAN SEIKO LORD MATIC WEEKDATER 5606-7130 23Jewels Automatic.

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

Item description

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 : 069874.
• Dial number : JAPAN 5606-7280R.
• Glass : Acrylic.
• Case size : About 35.67mm.
• Lug width : 18mm.
• 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 Benchmark of 1970 Executive Luxury (1970): Manufactured in **1970**—a pivotal year marking the dawn of a new decade in Japanese horology—the **Seiko Lord Matic Weekdater** reference **5606-7130** represented Suwa Seikosha's preeminent middle-upper tier executive timepiece. Sitting directly below the King Seiko family, it delivered daily mechanical reliability wrapped in sharp, sophisticated Showa-era styling.

The Ultra-Slim 23-Jewel Caliber 5606 Automatic Engine: Powering this historic instrument is the proven **23-jewel Caliber 5606**, operating at a smooth frequency of **21,600 vibrations per hour (vph)**. Celebrated for its thin architectural profile that enabled sleek case designs, this movement incorporates essential executive features including **hacking seconds**, quick-set day/date calendar functionality, and smooth manual-winding capability.

Architectural ""7130"" Grammar of Design Case Geometry: Sourced in a solid stainless steel case, the reference **5606-7130** features a striking, angular case profile with sharp multifaceted lugs and broad zero-distortion mirror-polished surfaces. Adhering strictly to Taro Tanaka's **""Grammar of Design""** guidelines, the low center-of-gravity engineering allows the case to rest flat and flush against the wrist.

Symmetrical Dual-Calendar Dial Harmony and Bilingual Utility: The dial of the **5606-7130** exhibits exceptional visual balance, showcasing a radiant silver sunburst canvas set with **hand-applied, multifaceted rectangular block indices** and razor-sharp hands. Positioned symmetrically at 3 o'clock, the framed dual-calendar aperture houses a **bilingual (English/Kanji) day disk** alongside the date wheel, offset by the applied **""LM"" emblem** above 6 o'clock.

An Investment-Grade Classic of Suwa's Automatic Heritage: Produced during the prime production window of the 56LM series in **1970**, the 5606-7130 remains a highly coveted, universally respected cornerstone reference for serious vintage Seiko collectors. It captures the exact moment where Suwa Seikosha perfected executive daily-wear aesthetics during the golden age of mechanical watchmaking.

For more information, please look at the pictures.

Notes

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