Seiko Lord Matic – Ref. 5606-7280 (April 1973, Japan)

This elegant Seiko Lord Matic, reference 5606-7280, dates from April 1973 and combines classic lines with technical precision. The watch was completely disassembled, cleaned, and professionally serviced in Japan in October 2025 .

The case is in very good condition with sharp edges and clearly polished surfaces. Of particular note is the triple-faceted original crystal , which creates the characteristic play of light characteristic of this series. The deep blue, subtly textured dial with vertical sunburst finish lends the watch a modern, almost architectural presence. This color variant is considered rare and highly collectible .

Technical data

• Reference: 5606-7280
• Serial number: 34xxxx (April 1973)
• Movement: Automatic caliber 5606A , 23 jewels, day/date display (Kanji/English), hacking seconds and manual winding
• Case: Stainless steel, "WATER RESISTANT" engraving
• Diameter: 36.6 mm (excluding crown)
• Lug-to-lug: 40 mm
• Height: 11.5 mm
• Lug width: 18 mm
• Weight: 50 g (including new leather strap)
• Revision: Complete revision in Japan (October 2025)

Design and background

The Lord Matic (LM) series was introduced in the late 1960s as an upper-middle-class watch positioned between the Seiko 5 and the King/Grand Seiko models. It was aimed at discerning buyers who sought high-quality craftsmanship and precise technology but could do without chronometer certification.

The installed caliber 5606A comes from the Daini factory and was known for its high reliability and technical sophistication: It features quick-set day and date , stop-seconds function and the possibility of manual winding – all features that were previously reserved only for the top lines.

Historical context

The Lord Matic was created during a time of intense rivalry between the two Seiko factories:

• Daini Seikosha , responsible for the King Seiko and the Lord Matic ,

• Suwa Seikosha , producer of the Grand Seiko and many Seiko 5 Sports models.

This internal competition led to an unprecedented refinement of Japanese watchmaking. Models like the 5606-7280 mark the pinnacle of mechanical development before the quartz revolution and demonstrate how Seiko perfectly combined precision, elegance, and everyday usability.

Condition

In excellent original condition with minimal signs of wear. The dial is flawless, and the case edges are sharp. The crystal is original, clear, and displays the distinctive triple-faceted design. The new black leather strap perfectly complements the elegant overall look.

Warranty (used)

This is a used item. The limitation period for claims based on defects (statutory warranty) is 12 months from delivery.

Notice
As this is a pre-owned watch, water resistance cannot be guaranteed. To protect the movement, the watch should not come into contact with water or moisture.