Vintage 1980 Seiko 7549-7010 Tuna Professional 300m Serviced Watch Original

We are pleased to offer this stunning Seiko 7549-7010 “Tuna Can” professional diver, manufactured in September 1980. The 7549 series was Seiko’s first professional 300m quartz diver, a pioneering model that combined durability, accuracy, and bold design.
 
This example is in beautiful original condition, with its stainless steel shroud still retaining the original frosted factory finish. The watch has been fully serviced, fitted with all new seals and a genuine Seiko-branded battery, ensuring reliable performance for years to come.
 
All factory-original components remain in place, including the untouched dial and hands with original lume. The English/Kanji day wheel functions perfectly, as do the quickset day and date, and the bezel action is crisp and precise. The screw-down crown operates smoothly, and the movement keeps excellent time, tested and adjusted using a Seiko Quartztester (QT-99) to +4 seconds a year.
 
The watch comes fitted with a new Seiko flat vent dive strap and fat spring bars.
 
Please study the photos and video carefully, as they form part of the description and show the condition in greater detail.
 
Movement: Quartz
Case Diameter: 47mm
Band Width: 22mm
 
Owning a Vintage Watch
Vintage watches may not perform like modern battery powered pieces and should be treated with care. They can develop character through wear and patina, which adds to their unique charm. Even a rugged diver like this Seiko Tuna should be handled with respect, avoid shocks, drops, and moisture exposure unless tested for water resistance.