Vintage Seiko 6139-8020 Chronometer Function - Chocolate Dial, Yellow Hands

Описание: 70's Seiko 6139 Chrono on non-genuine bracelet.
Just a quick video to show how the chrono and seconds hands work on a 6139 movement:
The seconds hand stays still unless the chronograph (a column wheel!) is engaged. The pusher at 4 zeroes the seconds hand back to 12.