Seiko 5 6309-8840

A glossy black dial and sharply faceted tonneau case define this 1976 Seiko 5, reference 6309-8840. The 36 mm stainless steel case has a compact 40 mm span, with a recessed crown and practical day-date display. Automatic caliber 6309 powers the watch, fitted with tan leather and contrasting stitching.

Glossy black dial and polished batons

Applied rhodium-tone baton hour markers stand above the deep black surface, with discreet luminous plots around the minute track. The applied Seiko 5 emblem sits beneath 12, while Automatic printing and the small shield appear above 6. A framed day-date window occupies 3 o’clock.

Polished baton hour and minute hands have luminous filling, accompanied by a slender central seconds hand. The restrained handset and crisp dial furniture give the display a clear, balanced appearance.

Faceted tonneau case and tan leather

Radial satin brushing across the case top contrasts with polished facets and flanks. The hidden lugs keep the angular outline continuous, while the slightly raised, domed crystal follows the case profile. The recessed crown at approximately 4 o’clock leaves the flank unobtrusive.

The case measures 36 mm across and 40 mm from lug to lug, with an 18 mm strap fitting. Its short length keeps the watch compact on the wrist despite the broad dial opening. The tan leather strap and contrasting stitch introduce a warmer color against the black dial and steel case.

Automatic 6309 and original condition

The Japanese-made caliber 6309 powers this automatic watch’s central seconds and day-date. Winding and time setting work correctly, and the calendar advances as intended. The movement is fully serviced and fully operational.

The Seiko 5 line began in the 1960s with an emphasis on practical everyday features. This reference combines its automatic calendar and recessed crown with the angular case finishing and restrained dial of a dress watch.

This used men’s example retains original watch-head components, a crisp black dial and sharp brushed and polished case surfaces. It includes a 12-month warranty. Insured worldwide shipping is available, with careful protective packing.