1970 Seiko KS Chronometer Officialy Certified 5626-7040

Serviced 1970 Seiko KS Chronometer Officially Certified HI BEAT automatic with less common blue dial that is actualy blue. 

New genuine Seiko black leather belt 

New hardlex crystal 

Dial and hands are in good condition.

Gold medallion on the back is original, not the fake gold replacement found on many KSs. There are little bit of damage on the edge of it.

Watch had been completely disassembled, cleaned and lubricated. 

Plastic wheel that turns calender discs has been replaced with metal one, so you dint need to worry about breaking it. 

Caliber 5626 features manual and integrated automatic winding with hacking and quick set date.
Everything works as it should.

Accuracy is seems to be very good after service, only a few seconds variance per day.