SEIKO 6139
- the FIRST with column wheel & vertical coupling ,a configuration that was later adopted by many Swiss Auto Chronos - including ROLEX DAYTONA in 2000
- the FIRST automatic chronograph in the world
- in 1973 Colonel William Pogue brought his seiko 6139 - 6002 Automatic Chronograph on board the Sky Lab 4 mission as part of his personal kit
- Colonel Poque decided to sell his personal watch at auction in 2008, hammering for just under $6000 (all proceeds went to Astronout Scholarship Fondation )