Vintage 1965 JAPAN SEIKO SPORTSMATIC5 6619-8050 21Jewels Automatic.

Vintage 1965 JAPAN SEIKO SPORTSMATIC5 6619-8050 21Jewels Automatic.

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

Item description

Movement :

• Pet name : SPORTSMATIC5 .
• Caliber number : 6619A.
• Movement : Automatic.
• Beat rate : 18000bph.
• Year of manufacture start : 1964's.
• Factory : Suwa.

Externals :

• Serial number : 5702535.
• Dial number : JAPAN 6619-8070T AD.
• Glass : Acrylic.
• Case size : About 35.48mm.
• Lug width : 19mm.
• Band : New Leather Strap.

Condition :

• Used, it runs well.
• Quick set(Day) : Okay.
• Set the day of the week : English only.
  Set of the days of the week : Turn the hour hand for 24 hours to set it.
  Set of the date is press the crown.
• The day difference time of an used watch is about +-1 minute / day.
• For practical, everyday use, it would be advisable to have the movement cleaned and oiled.

Key Features

The Milestone of Mid-60s Automatic Five-Point Culture (1965): Manufactured in **1965**—a golden historical year following the Tokyo Olympics when Japan's rapid urban modernization reshaped daily lifestyle—the **Seiko Sportsmatic 5** served as the absolute baseline of global daily reliability. Born from the **Suwa Seikosha** factory under reference **6619-8050**, this historic model represents the definitive evolution of the original ""Seiko 5"" philosophy. Explicitly created for the active modern workforce, it combined rugged sports durability with clinical, executive styling.

The Reliable 21-Jewel Caliber 6619 Automatic Engine: This masterpiece is powered by the highly respected **21-jewel Caliber 6619A**, a robust automatic movement operating at a classic frequency of **18,000 vibrations per hour (vph)**. Famous for its ultra-durable architecture, this caliber integrated a lavish **21-jewel specification** to minimize gear friction and optimize automatic rotor efficiency. Engineered with Seiko's signature **Diashock** impact protection system, it secured legendary long-term daily stability.

Revolutionary Push-Set Quick Date and Recessed 4 O'clock Crown: A defining technological triumph of the Caliber 6619 was its innovative **push-button quick-set date mechanism**. By simply pressing the main crown inward toward the case, the user could instantly advance the date wheel—a massive leap forward in daily convenience. Adhering to automatic design pride, the watch housed a **completely recessed crown flush with the case at 4 o'clock**, signaling that manual winding was completely unnecessary.

Architectural ""8050"" Muscular Case and Dual-Calendar Layout: The reference **6619-8050** is globally celebrated among vintage purists for its substantial, broad-shouldered case architecture featuring **thick, faceted lugs** that command a powerful wrist presence. The radiant silver sunburst dial showcases a beautifully balanced dual-calendar layout: a framed date window at 3 o'clock paired with a distinct, framed day window. Decorated with hand-applied chunky block indices, the dial is proudly completed by the applied shield-shaped **""5"" emblem**.

The Sovereign Pride of the Engraved Dolphin Case Back: Manufactured in the milestone mechanical year of **1965**, the 6619-8050 21-jewel variant remains a highly coveted, investment-grade cornerstone reference for serious vintage Seiko collectors worldwide. The ultimate hallmark of its historic sports-utility pedigree sits proudly on the screw-down case back: a **crisply detailed, etched Dolphin insignia**, which historically certified its rugged daily durability and water resistance. It stands as an eternal testament to an era when Suwa perfected the high-utility automatic daily instrument.

For more information, please look at the pictures.

Notes

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