Seiko 5 Sports Ref. 5126-6010 / 51-5 326 - Orange Dial, March 1969
Featuring an orange dial, a large cushion-shaped case, and an open-link steel bracelet, this 5126-6010 produced in March 1969 exemplifies the bold, distinctive designs adopted by the Seiko 5 Sports line during its early years. Notable for both its vibrant orange dial and its period-correct bracelet, this particular piece remains in excellent overall condition and retains its original Seiko Sports bracelet.
**IMPORTANT NOTE: As this item is shipped from within the European Union, you will not be liable for any customs duties within the EU.**
The Seiko 5 Sports line was introduced in 1968, elevating the concept of an everyday automatic watch by incorporating higher water resistance, Hardlex crystal, and more vivid dial colors. This orange version appeared in the Japanese catalog the following year under the reference 51-5 326, priced at ¥14,000.
The orange dial features large, rectangular indices and broad hands with black-painted tips. Light-colored luminous sections form a distinct ring around the dial, while the day-date window at the 3 o'clock position is framed in metal. The blue "SPORTS" lettering in the lower section serves as a subtle yet easily noticeable detail against the orange backdrop.
A bidirectional rotating inner bezel, which encircles the dial, adds a functional dimension to the design. It can be adjusted by turning the crown located at the 4 o'clock position while in its standard, pushed-in state. By aligning the starting triangle with the minute hand, one can track elapsed time. The first fifteen minutes are marked off by black segments, making it easier to read shorter time intervals.
The stainless steel "cushion" case, measuring approximately 40 mm in width, features a brushed finish on its expansive top surface, while the narrow section surrounding the crystal is polished. These contrasting surfaces accentuate the watch’s bold, substantial form.
The wide metal links and dual apertures of the original bracelet make it appear as a seamless extension of the case on the wrist. This particular style is known among collectors and horologists as the "Razor" bracelet a signature steel design for the Seiko Sports line. The clasp bears the "SEIKO / 5 SPORTS" signature.
A small zigzag mark below the dial indicates that this timepiece originated from the Daini Seikosha factory. Inside, it is powered by the 23-jewel Seiko Calibre 5126A. This automatic movement, which beats at 19,800 vibrations per hour, features a day-date display and a quick-set date function activated by pressing the crown. The use of reversing gears in the winding mechanism is another technical detail that distinguishes the 5126A from the more common Seiko 5 movements of that era.
In this specific example, the orange dial retains its vibrancy, the printed details remain sharp, and the case surfaces have preserved their original character. While there are signs of wear, they are moderate given the watch's age; the original steel bracelet is also still present.
Final Thoughts
The 5126-6010 captures the early years of the Seiko 5 Sports line, characterized by its orange dial, internal rotating bezel, and distinctive "Razor" bracelet. This model remains a true reflection of its original catalog design, preserving the cohesive integrity of its dial, case, and "Sports" bracelet to this day. The item you are viewing was manufactured in 1969.
HAS UNDERGONE PROFESSIONAL MAINTENANCE AND SERVICING.
The mechanism has been fully disassembled; every individual component has been cleaned, lubricated, and precisely adjusted to ensure flawless operation. (It will not require further maintenance for three years, provided it is not subjected to adverse conditions.)
Product Condition: Tested; all functions are in full working order.
