Seiko Quartz QZ – 0923-8010 (September 1974)

Early Seiko quartz classics of the 1970s – authentic vintage look in the original design

This Seiko Quartz QZ from April 1974 belongs to the early generation of Japanese quartz watches that Seiko launched after the legendary "Quartz Astron" starting in 1969. The model 0923-8010 represents the second phase of quartz technology development – ​​more reliable, more suitable for everyday wear, and significantly thinner than the first prototypes. Characteristic of this series is the minimalist, high-quality brushed dial with a bilingual Japanese day-of-the-week display (Japanese/English), the iconic "QZ" logo, and the angular, futuristic case design typical of the early 1970s.

This watch is an honest, authentic vintage piece with visible, age-appropriate signs of wear – technically sound, visually charming, and stylistically typical of the transition from mechanical to quartz movements. A matching aftermarket stainless steel bracelet in the style of the original is fitted and harmonizes very well with the case.

Dating via serial number

Serial number: 49XXXXX → September 1974
(1st digit = year within the decade, 2nd digit = month)

Technical data

• Model: Seiko Quartz QZ
• Reference number: 0923-8010
• Caliber: Seiko quartz caliber 0923
• Year of manufacture: April 1974
• Movement: Quartz (battery operated)
• Dial: Silver with sunburst finish, applied indices
• Day of the week: Japanese/English (bilingual)
• Housing material: Stainless steel
• Case size: 36.5 × 40.1 mm
• Height: 11.3 mm
• Lug-to-lug: 40.1 mm
• Lug width: 18 mm
• Bracelet: Stainless steel aftermarket in the design of the 1970s QZ series
• Total weight: 127 g
• Condition: Fair vintage condition with age-appropriate signs of wear on the case and glass

Special features

• Early Seiko quartz phase (collector segment 1972–1976)
• Bilingual date display (JP/EN)
• Striking 70s case with satin-finished surfaces
• Classic QZ logo application
• Period-typical integrated strap design (aftermarket, very good fit)

Note regarding date change

The bilingual day display can be easily switched between Japanese and English by repeatedly pressing and holding the setting position – a typical feature of 70s Seiko models.

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.