Description

Offered here is a classic early example of the Seiko “Tuna” Professional 300m diver, reference 7549-7010, dating to April 1981. This model represents one of Seiko’s most iconic tool watches, designed for professional use with its monocoque case construction and protective outer shroud.

Serial Number: 1504XX

Powered by the robust Seiko 7549 quartz movement, known for its reliability and durability. A new battery was installed in April 2025. The watch has been fitted with a new period-correct rubber strap, maintaining the original tool-watch aesthetic.

• Condition:
  This example presents as an honest, well-used vintage diver with strong character and a clean overall appearance.
• Case & Shroud:
  Moderate wear throughout, including surface scratches, scuffs, and small dings consistent with use. The case retains its strong shape with no major damage.
• Bezel:
  The bezel insert shows heavy patina and speckling, giving the watch a distinctly vintage appearance. All markings remain visible and legible.
• Crystal:
  Clean, clear, and free of scratches or wear.
• Dial & Hands:
  The dial is in excellent condition with crisp printing. Lume plots are intact and evenly aged. Hands show matching patina, consistent with the watch’s age.
• Crown:
  Crown shows light wear and operates as expected.
• Caseback:
  Engravings, including the tsunami logo and reference details, remain clearly visible. Surface wear present but appropriate for age.
• Strap:
  New period-correct rubber strap installed, unworn.