Vintage 1970 JAPAN SEIKO LORD MATIC WEEKDATER 5606-7150 23Jewels Automatic.

Vintage 1970 JAPAN SEIKO LORD MATIC WEEKDATER 5606-7150 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 : 0N1806.
• Dial number : JAPAN 5606-7380R.
• Glass : Crystal.
• Case size : About 37.51mm.
• Lug width : 18mm.
• Band : Wrist size that can be worn is Up to about 205mm.

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 Lord Matic (LM) Cultural Icon: By **1970**, the **Lord Matic** had reached its peak popularity in Japan. It was the aspirational timepiece for the ""New Family"" generation, offering a high-status mechanical experience that sat just below the King Seiko. It combined the precision of Suwa Seikosha’s best engineering with the avant-garde design trends of the early 70s.

The Precision Caliber 5606: This watch is powered by the **Caliber 5606**, a 23-jewel automatic movement. Operating at **21,600 vibrations per hour (vph)**, it was the definitive **ultra-slim automatic** of its era. Its thinness was a major technological pride for Seiko, allowing the 5606-7150 to achieve a sophisticated, low-profile silhouette that was highly valued in professional circles.

Modernist 7150 Case Architecture: The reference **5606-7150** features a more ""integrated"" and muscular case design compared to the earlier 7000-series. With its broader lugs and distinctive geometric lines, it perfectly embodies the transition from 1960s minimalism to the bolder, more substantial watch designs that defined the **1970s**.

Elite ""GS/KS"" Engineering DNA: The 56-series architecture found in this model was so high-performing that it served as the direct base for the **Grand Seiko 56GS** and **King Seiko 56KS**. This means the 5606-7150 is equipped with a movement designed for chronometer-grade potential, making it one of the best value-to-performance mechanical watches in history.

Enhanced ""Weekdater"" Practicality: Designed for the busy professional of 1970, it features a dual-calendar display with a **bilingual (English/Kanji) day disk**. The 5606 movement provided premium features like **manual winding, hacking seconds**, and a **quickset mechanism**, ensuring it was as functional as it was stylish for daily office use.

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.