Seiko 5 Automatic (Ref. 5126-7000) – June 1967

This Seiko 5 Automatic with reference 5126-7000 dates from June 1967 (serial number 76xxxx) and thus belongs to one of the earliest and most formative phases of the Seiko 5 line.

The 1960s marked the consistent industrialization of mechanical watches at Seiko. The "Seiko 5" stood for five key features: automatic winding, day-date display, water resistance, recessed crown, and robust construction for daily use.

Inside, the proven caliber 5126 with 23 jewels works, a reliable automatic movement known for its solid construction and suitability for everyday wear.

The design is typical for the late 1960s: a compact diameter of approx. 35.5 mm, combined with clear indices and a finely textured, silver dial. The proportions appear classic and balanced and are still very comfortable to wear today.

The watch comes with the original Seiko stainless steel bracelet, which underlines its authentic overall condition.

Technical Data

• Reference: 5126-7000
• Production date: June 1967
• Movement: Seiko Caliber 5126, automatic, 23 jewels
• Functions: Hour, Minute, Second, Day-Date
• Case: Stainless steel
• Diameter: approx. 35.5 mm
• Lug-to-Lug: approx. 39.6 mm
• Height: approx. 10.3 mm
• Lug width: 18 mm
• Weight incl. strap: approx. 74 g
• Bracelet: original Seiko stainless steel bracelet

Condition

The watch is in well-maintained vintage condition.

The case shows age-appropriate, moderate signs of wear. The crystal has slight signs of wear. The dial is generally well preserved with a slight, even patina, especially around the edges. Hands and indices are original and coherent. The original steel bracelet is present and in good, wearable condition.

Overall, a very honest and well-preserved example with an authentic appearance.

Classification / Collector's Perspective

The early Seiko 5 with caliber 5126 is particularly interesting from a collector's perspective, as it reflects the transitional phase between classic 60s dress watches and the later, more robust 70s models.

Compared to later Seiko 5 models, this generation appears significantly more elegant and minimalist in design. At the same time, it already offers the everyday usability typical of the series.

The combination of an early production year, original condition, and complete set (incl. bracelet) makes this model an attractive entry into the world of early Japanese automatic watches.

Historically, the Seiko 5 also stands in the context of parallel development to King Seiko and Grand Seiko, which characterized the technological competition within the company (Daini vs. Suwa) in the 1960s. While these lines were positioned in the high-end segment, the Seiko 5 directly benefited from these technical advancements in the mass market.

Warranty (used)

This is a used item. The limitation period for claims for defects (statutory warranty) is 12 months from delivery.

Note

As this is a used watch, water resistance cannot be guaranteed. To protect the movement, the watch should not come into contact with water or moisture.