Vintage 1976 JAPAN SEIKO GRAND QUARTZ 4843-7001 7Jewels Quartz.

Vintage 1976 JAPAN SEIKO GRAND QUARTZ 4843-7001 7Jewels Quartz.

Welcome to my auction!

Item description

Movement :

• Pet name : 48GQW GRAND QUARTZ.
• Caliber number : 4843.
• Movement : Quartz.
• Year of manufacture start : 1974's.
• Factory : Suwa.

Externals :

• Serial No. : 603666.
• Dial No. : JAPAN 4843-7000T.
• Glass : Crystal.
• Case size : About 36.3mm.
• Lug width : 19mm.
• Band : Can be adjust the length.

Condition :

• Used, it runs well. Battery replaced
• 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.
• Approximate watch rate at Japan : Quartz.
• For practical, everyday use, it would be advisable to have the movement cleaned and oiled.

Key Features

• The Sovereign Dawn of Ultra-High-Precision Luxury Quartz (1976): Manufactured in 1976—a landmark historical era when Seiko reigned supreme at the global vanguard of electronic timekeeping—the Seiko Grand Quartz reference 4843-7001 served as Suwa Seikosha's flagship luxury watch. Following the cessation of the initial mechanical Grand Seiko lines, the Grand Quartz assumed the mantle of the company's highest horological standard, priced well above contemporary Swiss mechanical luxury flagships.
• The Over-Engineered 7-Jewel Caliber 4843 Twin-Mode Quartz Engine: Powering this landmark instrument is the celebrated in-house 7-jewel Caliber 4843A, operating at 32,768 Hz and factory-regulated to an astonishing accuracy standard of ±5 seconds per month. Far surpassing conventional quartz designs, the 4843 was an over-engineered, fully serviceable metal caliber equipped with 7 jewels, trimmer-capacitor fine regulation, hacking seconds with jump-second hand synchronization, and quick-set bilingual calendar operation.
• Architectural ""7001"" Grammar of Design Zaratsu Case Geometry: The reference 4843-7001 stands as a definitive triumph of Taro Tanaka's ""Grammar of Design"" applied to modern electronic horology. Executed in solid stainless steel, the case features razor-sharp angular facets, flat bezel planes, and distortion-free mirror-polished Zaratsu chamfers that meet fine hairline-brushed surfaces, delivering breathtaking contrast while resting flush against the wrist.
• Masterful Dial Artistry and Bilingual Dual-Calendar Harmony: The dial of the 4843-7001 showcases immaculate mid-1970s dialcraft, featuring a radiant textured canvas (often in subtle snowflake or linen finishes) set with hand-applied, multifaceted rectangular block indices with dark central inserts. Symmetrically framed at 3 o'clock, the dual-calendar window features a bilingual (English/Kanji) day disk alongside the date wheel, proudly offset by the applied ""SEIKO"" logo, applied ""GQ"" insignia, and the iconic gold single-quartz honeycomb emblem above 6 o'clock.
• The Sovereign Crown-Embossed Quartz Insignia and Collector Heritage: Emphasizing its top-tier status, the watch features the stylized quartz crystal emblem embossed directly into the crown alongside a screw-in battery hatch on the case back for easy maintenance without opening the main movement chamber. The 1976 4843-7001 Grand Quartz remains an indispensable, investment-grade cornerstone reference, marking the exact zenith where Seiko redefined ultimate chronometric luxury for the modern era.

For more information, please look at the pictures.

Notes

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