Seiko automatic chronograph cevert

Vintage all original Seiko cevert automatic chronograph model 6139-6002 from the 1970s with dark blue dial and Roman numerals/English weekdays. The watch works nicely. The service history is unknown. The watch has been cleaned and the gaskets have been changed. The innerbezel turns nicely by rotating the crown. The pepsi tachymeter scale bezel is in good condition. The original Steelux bracelet has been refinished and the case has been slightly finished. The bracelet comes with all of its links. The watch has been waterproof tested and it passed.