Vintage 1969 JAPAN SEIKO LORD MATIC CALENDAR 5605-5000 25Jewels Automatic.

Vintage 1969 JAPAN SEIKO LORD MATIC CALENDAR 5605-5000 25Jewels Automatic.

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

Item description

Movement :

• Pet name : 56 LORD-MATIC CALENDAR.
• Caliber number : 5605A.
• Movement : Automatic.
• Beat rate : 21600bph.
• Year of manufacture start : 1968's.
• Factory : Suwa.

Externals :

• Serial number : 9N0411.
• Dial number : JAPAN 5605-5001T AD.
• Glass : Acrylic.
• Case size : About 31.5mm.
• Lug width : 20mm.
• Band : New Leather Strap of SEIKO original.

Condition :

• Used, it runs well.
• Quick set(Day/Date) : Okay.
  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 Pioneer of 1969 Geometric Dress Styling (1969): Manufactured in **1969**—a landmark year defining the golden era of Japanese mechanical innovation—the **Seiko Lord Matic Calendar** reference **5605-5000** represented Suwa Seikosha's rare, date-only geometric dress model. Created during the height of the 56LM series, this reference offered collectors an avant-garde squarish silhouette coupled with high-grade, uncompromised date-only mechanical balance.

The Refined 25-Jewel Caliber 5605 Automatic Heart: Powering this historic timepiece is the rare **25-jewel Caliber 5605**, the dedicated date-only variant of Suwa's celebrated 56-series movement family. Operating at a smooth frequency of **21,600 vibrations per hour (vph)**, it features **hacking seconds**, quick-set date control, and manual-winding capability. The 25-jewel specification deployed synthetic rubies across gear-train pivots to minimize mechanical friction and ensure long-term rate stability.

Architectural ""5000"" Cushion/TV Case and Grammar of Design: Sourced in a solid stainless steel case, the reference **5605-5000** features a distinct squarish cushion geometry with broad, sweeping lug facets. Engineered according to Taro Tanaka's **""Grammar of Design""** guidelines on flat planes and angled light reflection, the case showcases fine brushed surfaces offset by razor-sharp, zero-distortion Zaratsu-polished side bevels that sit flat and flush against the wrist.

Immaculate Date-Only Dial Symmetry and Visual Restraint: The dial of the **5605-5000** exhibits exceptional visual harmony adapted to its geometric case. Set against a radiant silver sunburst canvas, it features **hand-applied, multifaceted rectangular block indices** and sharp hands. Uncluttered by a day window, the neatly framed date aperture at 3 o'clock is perfectly balanced by the applied polished **""LM"" emblem** and Suwa factory insignia above 6 o'clock.

An Investment-Grade Rare Form Factor of Suwa's 56-Series Legacy: Produced in the milestone year of **1969**, the 5605-5000 25-jewel Lord Matic Calendar remains an uncommonly seen, highly prized reference for vintage Seiko purists. Combining an unusual non-circular Grammar of Design cushion case with the dedicated 5605 date-only caliber, it stands as an eternal testament to late-1960s Japanese horological design.

For more information, please look at the pictures.

Notes

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