HOT ! Vintage Seiko Quartz LC Digital Watch – Model M154-5009 (Japan, ca. 1977–1980)

A true relic of Seiko’s early quartz revolution. This Japan-made digital watch features a working LCD display with time, date, day-of-week, and month/year readouts. Iconic rectangular case with original stainless steel bracelet and signed clasp.

The model M154-5009 was part of Seiko’s pioneering LCD quartz lineup—early evidence of the brand’s technological leadership in digital watchmaking.

🔍 Key Features:

• Brand: Seiko


• Model: M154-5009


• Serial No.: 7D1520


• Movement: Quartz LC digital


• Functions: Time, date, day-of-week, year/month


• Case: Stainless steel


• Bracelet: Original stainless steel band with signed clasp


• Water Resistant: Yes (untested)


• Country of Manufacture: Japan

📏 Dimensions:

• Case width: ~38mm


• Band fits average wrist (adjustable links)

⚠️ Condition Notes:

• Watch is working and all segments display properly.


• Moderate to heavy cosmetic wear: scratches to crystal and case.


• Battery hatch has visible damage/gouging (see close-up photos).


• Some grime present near back gasket area – cleaning recommended.

Ideal for vintage collectors, early digital watch enthusiasts, or Seiko completists. Sold as-is, functioning but not refurbished.

U.S. buyers are responsible for import duties, tariffs.