Like it's Lotus 72 namesake, the 6139-8030 is a finely tuned machine with aerodynamic lines, crisp corners, and a slick black and gold paint job. At 40mm, it's not overpowering, and still has plenty of presence. The matte black dial is deeply set beneath the gold minute track and black tachymetric chapter. The cushion shaped sub registers are a rich satin gold with a distinct "north to south" grain. From October of “77, this is a fantastic example with tons of vintage racing inspired appeal. The dial shows only minor aging and the luminous markers have a fairly heavy patina. The hour and minute hands are flawless in black and white with no chipping or missing paint. The chronograph sweep is bright white and easy to spot against the dial. The 6138 is keeping near perfect time post service, and the chronograph functions are perfect. It’s completely original aside from a replacement crystal, and the case is unpolished with the factory finishes still visible. A true Seiko great, the JPS is on every collectors list, and it’s easy to see why. A sleek vintage chronograph with historic racing heritage, and in this case, nicely preserved, it’s bound to find a regular spot in any rotation.

Clockwork Synergy Desert Tan Double Layer Two-Piece RAF NATO (clockworksynergy.com)

Serviced 1/3/19

Diameter- 39.5mm

Lugs- 18mm