Vintage 1978 JAPAN SEIKO SilverWave-Z 7546-6060 4Jewels Quartz.

Vintage 1978 JAPAN SEIKO SilverWave-Z 7546-6060 4Jewels Quartz.

Welcome to my auction!
I am Japanese who live in Tokyo.

Item description

Movement :

• Caliber number : 7546.
• Movement : Quartz.
• Lunar equation : +-15s/m.
• Year of manufacture start : 1977's.
• Factory : Suwa.

Externals :

• Serial number : 872359.
• Dial number : JAPAN 7546-606L T.
• Glass : Crystal.
• Case size : About 38.8mm.
• Lug width : 20mm.
• Band : Wrist size that can be worn is Up to about 195mm.

Condition :

• Used, it runs well. Battery replaced
• Quick set(Day/Date) : Okay.
  Set of the date : The set at one stage pulling the crown.
  Set the day of the week can be in English or Kanji.
  Approximate width of the bezel : 38.5mm.
• Approximate watch rate at Japan : Quartz.
• For practical, everyday use, it would be advisable to have the movement cleaned and oiled.
• There are scratches on the glass.

Key Features

• The Sovereign Pioneer of Late-70s Sports-Quartz Utility (1978): Manufactured in 1978—a pivotal era when Seiko dominated the global watchmaking landscape with cutting-edge quartz innovation—the Seiko SilverWave-Z reference 7546-6060 represented Suwa Seikosha's rugged, water-resistant sports-dress flagship. Designed for active professionals requiring both elegance and athletic durability, the SilverWave line served as the direct precursor to Seiko's modern sports and dive watch series.
• The Robust 4-Jewel Caliber 7546 Heavy-Duty Quartz Engine: Powering this landmark timepiece is the celebrated 4-jewel Caliber 7546, an early-generation, high-torque in-house quartz movement constructed with solid metal gear trains and full serviceability. Built to mechanical-grade standards rather than disposable modern quartz specs, this movement delivers exceptional monthly timekeeping accuracy alongside a quick-set day and date calendar mechanism.
• Architectural ""6060"" Rotating Bezel and Screw-Down Crown Case: Sourced in a solid stainless steel case, the reference 7546-6060 is globally recognized among vintage collectors for its distinctive bi-directional rotating timing bezel and protective case contours. Built for athletic resilience, it features a screw-down crown anchored at 4 o'clock, minimizing wrist obstruction while ensuring enhanced water and dust protection.
• High-Contrast Sports Dial Harmony and Bilingual Utility: The dial of the 7546-6060 showcases exemplary late-1970s instrument design, featuring a crisp matte or sunburst canvas set with bold, luminescent hour indices and high-legibility hands. Symmetrically framed at 3 o'clock, the dual-calendar window houses a bilingual (English/Kanji) day disk alongside the date wheel, proudly adorned with the applied metal ""SEIKO"" logo and the iconic SilverWave tsunami wave emblem above 6 o'clock.
• The Sovereign Tsunami Wave Case Back Crest Heritage: The ultimate seal of athletic authority rests stamped on the case back: the iconic Seiko Tsunami Wave crest. Certifying its factory-regulated water resistance and sports-grade durability, the 1978 7546-6060 SilverWave-Z remains an indispensable, highly collectible cornerstone reference representing the golden dawn of Japanese quartz sports horology.

For more information, please look at the pictures.

Notes

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