Seiko delivered no shortage of racing inspired chronographs in the 1970's, and the "Helmet" is no exception. Though earning it's nickname from the helmet shaped profile of it's unique case, it looks much more like it was ripped from the dashboard of a 1970's touring car. Set deep beneath the angular mineral crystal sits a matte black dial trimmed in an array of colors, but with a very familiar layout. Much like an automotive speedometer, the seconds are displayed numerically on the inside edge of the hourmarkers. Trimmed in gold, the minutes of the sub register are marked out in a digital green and totaled by a slender yellow hand. The hour and minute hands are in white and off set by a bright yellow chronograph sweep. At the edge of the dial is a steep flat black tachymetric ring with the scale laid out in a soft white. On the original "Fishbone" bracelet, this example from January of ‘75 is unpolished and still has all of the original case finishes intact. It is as comfortable as it is stunning on the wrist, and a better specimen will be hard to come by. The chronograph functions are smooth and responsive, and the 6139B behind the case back is keeping near perfect time post service. 

Original Seiko "Fishbone" Bracelet in Stainless Steel

Serviced 1/6/19

Diameter- 40.5mm

Lugs- 20mm