Vintage 1973 Seiko 6139-8040 Speed-Timer Green Sunburst Dial Serviced
We’re excited to offer this rare and eye catching 1973 Seiko 6139-8040 Speed-Timer, a standout from Seiko’s golden era of chronograph design. This reference features a stunning green sunburst dial, a rarely seen colourway that gives the watch incredible depth and presence on the wrist.
This example retains its original long stainless steel bracelt and case with factory finish, showing honest wear consistent with age but no signs of polishing, just how collectors like it.
Freshly serviced in July 2024 by TEMPO PRIMA, this watch has received a full mechanical overhaul and is now running smoothly. As part of the service, we’ve installed a genuine new old stock (NOS) Seiko Hardlex crystal, offering a clear view of that vibrant green dial.
Key Details:
Model: Seiko 6139-8040 Speed-Timer
Production Date: December 1973
Movement: Seiko Calibre 6139 – Japan’s pioneering automatic chronograph, fully serviced and running well
Case: Stainless steel with original factory finish, unpolished, showing natural wear consistent with age
Dial: Rare original sunburst green dial with original hands and lume, beautifully preserved
Crystal: Genuine NOS Seiko Hardlex crystal installed during service
Bracelet: Original Seiko stainless steel bracelet 20.5cm overall lenght
Service: Full mechanical service with new seals (July 2024)
Condition: Excellent vintage condition, all-original with strong visual presence
This reference stands out for its vivid colour and authentic character, representing the innovative spirit of Seiko’s early automatic chronographs. The green dial is truly captivating, changing tone in different light, and the watch wears beautifully thanks to its classic proportions and original bracelet.
Whether you’re a long-time Seiko collector or new to vintage chronographs, this piece offers a unique combination of rarity, quality, and originality.
Please Note:
Although fully serviced, this remains a vintage mechanical watch. It may not match the accuracy of modern quartz movements, and it should be handled with care to ensure longevity.
Water Resistance:
This watch has not been pressure tested. While fitted with new seals, vintage watches should be kept dry and are not guaranteed to be waterproof.
At TEMPO PRIMA, we specialise in original, collectable vintage watches—each piece carefully serviced and presented with transparency and attention to detail. Feel free to reach out with any questions, or to request additional photos or video.
