Offered in this auction by Second Vintage
A truly rare collector’s opportunity: the Seiko Yomiuri 100 Ref. 6106-7710, produced in 1973 to honor the centennial of the Yomiuri Shimbun, Japan’s most storied newspaper. This distinctive and highly sought-after model is celebrated by enthusiasts for its rich green dial, unique “Yomiuri 100” emblem, and remarkable scarcity. Few Seiko models command such historical significance and vibrant aesthetic appeal, making this an exceptional find for any vintage watch connoisseur.
Brand: Seiko
Model: Yomiuri 100
Reference Number: 6106-7710
Serial Number: 3D7969
Movement: Automatic, Caliber 6106
Dial: Metallic green with gold-tone hands, applied markers, and “Yomiuri 100” badge
Case Size: 38mm (excluding the crown)
Case Material: Stainless steel
Production Year: 1973
Condition: Excellent vintage condition with minimal wear, sharp edges, and even patina. Timegrapher results: -29s to -33s/day, indicating healthy movement within vintage tolerances.
Dial and Hands
The metallic green dial is a captivating highlight, featuring a deep sunburst finish that shifts tones in varying light. All applied gold-tone hour markers, crisp hands, and the original “Yomiuri 100” badge remain in superb condition. The day-date window is sharp and the printing intact. Lume on the hands and hour plots has aged evenly to a warm creamy hue, enhancing its authentic vintage charm.
Case and Crystal
The 38mm stainless steel case retains strong, well-defined lines and sharp facets, with light surface marks from gentle use that underline its well-preserved status. The original crystal is clear, presenting the dial beautifully and free from distracting blemishes.
Movement
Fitted with Seiko’s robust Caliber 6106 automatic movement, this watch performs reliably. Recent timegrapher results show -29s to -33s/day, which reflects healthy running consistent with vintage tolerances. The movement is known for its durability and efficient winding, supporting dependable daily use.
Strap
The watch is paired with its period-correct stainless steel bracelet, suitable for wrists up to 17.5cm. The bracelet shows only light stretch, remaining secure and comfortable for wear.
Condition
This Seiko Yomiuri 100 is in excellent vintage condition overall. The watch displays attractive original patina and retains sharp case details, with only minor and honest signs of age. The green dial, gold accents, and special badging are all clear and well-defined, underscoring its remarkable preservation.
Dimensions
Case diameter: 38mm (excluding the crown)
Bracelet fits wrists up to 17.5cm
Remarks
The Seiko Yomiuri 100 is exceedingly rare, with its vibrant commemorative dial and gold detailing making it a true standout among Seiko’s most collectible vintage models. This example’s originality and historical significance elevate it as a centerpiece for any collection.
History
Released in 1973, the Seiko Yomiuri 100 was commissioned to celebrate 100 years of the Yomiuri Shimbun’s influence in Japanese society. Its commemorative status, striking design, and limited production have ensured its place as a treasured and elusive model within the world of vintage Seiko collecting.
/ Second Vintage
SKU: SEIR1MR3H0000





























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Seiko Yomiuri 100 6106-7710 (1973)
Seiko • 1973
Sold for
€385
≈ $434
Sold on Dec 28, 2025
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