Seiko Ref. 6139-6012, Cal. 6139, Men’s Chronograph Vintage Watch, 1974

Warm golden colour and black applied indices define this Seiko chronograph from 1974, reference 6139-6012. A silver tachymeter chapter ring surrounds the brushed sunburst dial, with a 30-minute register at 6 and English/Spanish day-date at 3. Automatic caliber 6139 powers the 39 mm steel tonneau case, joined to its original H-link bracelet.

Golden sunburst, vertical brushing and bilingual calendar

The golden sunburst dial has fine vertical brushing, with contrasting black applied hour indices. A silver outer chapter ring carries the tachymeter scale, adding depth around the display. A 30-minute chronograph register at 6 balances the metal-framed day-date at 3, whose day wheel offers English and Spanish.

Black baton-style hour and minute hands contain luminous inserts. The slender central chronograph seconds hand accompanies a subsidiary hand at 6 with a restrained monochrome treatment. The darker furniture separates the readings from the warm dial and bright surrounding scale.

Brushed tonneau steel and slightly domed Hardlex

The stainless steel tonneau case measures 39 mm in diameter and 44 mm from lug to lug, with a 19 mm fitting. A brushed top contrasts with polished sides, retaining this 1970s watch’s sports-chronograph profile. The slightly domed Hardlex crystal completes the raised outline over the dial.

The recessed unsigned crown sits at 3:30. Its placement keeps the case line clear and retains the reference’s original control design.

Original H-link bracelet and folding clasp

The original Seiko stainless steel H-link bracelet continues the case’s metal presentation. Its signed folding clasp secures the attachment. The wrist size is 220 mm.

In-house automatic 6139 and confirmed service

This automatic watch uses Seiko’s in-house caliber 6139, a chronograph movement with model specifications of 17 jewels and 21,600 beats per hour. Its column wheel and vertical clutch control chronograph engagement. Introduced in 1969 alongside the period’s Swiss automatic chronographs, the caliber belongs to the early self-winding chronograph generation.

This used watch is in excellent operational condition and retains all original components. It is fully serviced and fully operational, with a 12-month warranty included. Secure worldwide shipping is available.