Circa 1977 Vintage Seiko Automatic Hi-Beat 17-Jewel Day-Date 12K Gold-Filled Watch

DESCRIPTION

This circa 1977 Seiko Automatic is a well-preserved example of classic 1970s Japanese watchmaking, featuring a sculpted tonneau-shaped case in 12K gold-filled, a warm brown-tone dial, and a framed day-date display at 3 o'clock with an Arabic day wheel. The angular case profile and two-tone metal bracelet give it a distinctly period character that appeals to collectors of vintage Seiko and mechanical dress watches.

Powered by a 17-jewel Hi-Beat automatic movement, this watch combines reliable mechanical construction with the refined detailing that defined Seiko's international-market offerings of the era.

KEY DETAILS

• Maker: Seiko
• Era: Circa 1977
• Country of manufacture: Japan
• Case material: 12K gold-filled
• Case shape: Tonneau / TV-style
• Hallmarks and markings: Seiko Automatic, 17 Jewels, Hi-Beat, Japan, 12K gold-filled
• Serial number: 750073
• Dial color: Brown tone
• Hour markers: Applied gold-tone baton markers
• Movement: Automatic Hi-Beat
• Jewels: 17
• Likely caliber: Seiko 2206A
• Functions: Hours, minutes, central seconds, day, and date
• Calendar position: 3 o'clock
• Day display: Arabic
• Bracelet: Seiko-signed two-tone metal bracelet
• Closure: Fold-over clasp with adjustment holes
• Notable features: Bilingual-style day-date calendar; angular 1970s case design

MEASUREMENTS

• Case height: Approximately 30mm

CONDITION

• Pre-owned vintage condition
• Case shows scratches, scuffs, darkening, and visible wear to the gold-filled finish
• Bezel and case edges show finish loss and age-related wear
• Crystal shows visible scratches and surface marks
• Dial shows age-related marks; remains legible
• Bracelet shows scratches, scuffs, and finish wear
• Clasp is present; operation has not been independently confirmed
• Day and date displays are present; calendar-setting operation has not been tested

IMPORTANT NOTES

• The case is 12K gold-filled and is not solid gold
• Serial number 750073 indicates an estimated production date of May 1977
• Movement caliber is believed to be Seiko 2206A based on the 17-jewel Hi-Beat day-date configuration; exact caliber and case 
• Current running condition and timekeeping 
• Water resistance has not been tested and should not be assumed
• The bracelet is Seiko-signed; its originality to this specific watch 
• No original box or papers are included
• Sold as-is in its current vintage condition