| Size | Very Large 40mm |
| Dial | Perfect original black dial with tachymeter scale in white on outer edge of dial; a band of white with fine black minute and second tick markers. Silver hour and minute hands with black inset and red chrono hand. Day and date aperture windows at 3 o'clock, trimmed in silver. A near perfect condition dial. Quick set date set function. Push crown fully in to change day and halfway in to change date. Day can be set in either English or French. |
| Case | Solid stainless steel case, hefty with bold thick lugs. Back signed "Seiko, 6139-6012 (model), Water-Resistant" and serial 333274. |
| Movement | 17 jewel Cal 6129B automatic Seiko movement. Should only operate chrono function when watch if sufficiently powered. Serviced and comes with a 9-month written mechanical warranty. |
| Age | 1970s |
| Band | Thick stitched reddish-brown leather strap (18mm) with silver buckle. |
| Other | Unsigned inset crown |
| SKU | 0770 |