Seiko 5 6309-720C Men’s Automatic Dress Vintage Watch, 1982

Blue chapter-ring accents and vertical texture distinguish the Seiko 5 watch from 1982, reference 6309-720C. Its matte black dial has diamond-set indices at 6, 9 and 12, accompanied by luminous dauphine hands. The 37 mm polished steel tonneau case meets its original bracelet, with a recessed crown at 4 and a day-date window at 3.

Vertical black texture and blue accents

Subtle vertical striping runs through the centre of the matte black dial. Diamond-set indices occupy 6, 9 and 12, with baton markers completing the hours. Blue accents on the chapter ring and minute scale introduce a separate colour around the darker face.

The day-date display at 3 uses Roman-numeral day indications and Arabic date numerals. The polished dauphine hour and minute hands have luminous inlays, while a thin central seconds hand sweeps across the face. The angular hands and reflective indices contrast with the matte texture.

Polished tonneau and original steel bracelet

The stainless steel case measures 37 mm across and 41 mm lug-to-lug. Its tonneau form combines polished surfaces with sharp angles, giving the head a crisp outline. The recessed crown at 4 stays within the side profile.

The original steel bracelet has brushed centre links and polished edges. It meets the case with an integrated appearance, continuing the dress watch’s tonneau geometry while introducing a flatter brushed texture alongside the polished head.

Automatic caliber 6309 and Seiko 5 design

The automatic watch uses Seiko caliber 6309, operating at a model beat rate of 21,600 vibrations per hour. Its bilingual day-date functionality supplies both calendar indications alongside timekeeping.

The Seiko 5 design concept combines automatic winding, a day-date display, durable case construction, a recessed crown and water resistance. Water resistance remains a design attribute here; no present pressure-test result or numerical rating is documented. This early-1980s example pairs those everyday mechanical priorities with a textured dial and diamond-set furniture.

The watch is used and in excellent condition, with its original case, dial, hands and bracelet retained. It is fully serviced and fully operational, and includes a 12-month warranty. Worldwide shipping is available.