Seiko Sports 100, Ref. 7A48-5000, Cal. 7A48, Men’s Chronograph Vintage Watch, 1986

Gold-tone hands and markers contrast with the sunburst silver dial of this Seiko Sports 100 watch from 1986, reference 7A48-5000. Four subsidiary displays combine chronograph readings with moonphase, surrounded by a fine printed minute track. Quartz caliber 7A48 sits inside a 39 mm gold-plated steel case, joined to an original tapered gold-tone stainless steel bracelet.

Silver sunburst and coordinated gold-tone indications

The chronograph’s silver dial has a subtle radial sunburst texture that changes under light. Four subsidiary displays serve the chronograph and moonphase indications, with a fine printed minute track around the dial. Gold-tone hour markers add warmth against the cool ground.

Slim gold-tone stick hour and minute hands retain the light furniture. The central chronograph seconds hand reaches the minute track, and the subsidiary hands share the gold-tone finish. The matching handset keeps the multiple readings visually coordinated.

Gold-plated steel and original fluted crown

The stainless steel case has a gold-plated finish, measuring 39 mm in diameter and 41.5 mm from lug to lug. A polished bezel and integrated lugs preserve the slim, continuous outline of the head and attachment.

The original fluted gold-tone crown sits at 8. Matching gold-tone chronograph pushers at 2 and 4 place the controls on opposite sides of the case, preserving this example’s original layout.

Tapered original bracelet with brushed surfaces

The original integrated stainless steel bracelet has a gold-tone finish. Brushed link surfaces contrast with polished edges, with a taper toward the discreet, period-correct clasp. The links continue the warm metal presentation while retaining their separate surface treatments.

Quartz 7A48, tenths timing and moonphase

This quartz watch uses Seiko caliber 7A48, an analog chronograph movement with a moonphase display. Its model specification is 15 jewels and chronograph timing to one tenth of a second. The nominal accuracy rating is ±15 seconds per month, a caliber specification rather than a measured result for this watch.

The moonphase indication accompanies the timing readings, giving the silver-and-gold dial a separate lunar display. The Sports 100 family’s water-resistant sports design describes its original context; current water resistance is not established.

This used example is in excellent condition and retains all original components, including its integrated bracelet and controls. It is fully serviced and fully operational, with a 12-month warranty included. Worldwide shipping is available.