1968 Seiko Business-A 8306-8020

Serviced, 1968 Seiko Business-A 30 jewels automatic watch with NOS (new old stock) case and crystal. 

On original stainless steel bracelet with maximum circumference of 17cm. The watch also great on a leather strap. Seiko cowhide straps are available for additional 4,500 yen. 

Movement has been completely stripped, cleaned, lubricated and regulated to run well. It's well engineered movement with all 30 jewels being used. It has automatic and manual winding and calendar quick set. 

Pull the crown one step for date quick set. To change weekday, you need to advance hands to midnight. When day changes, go back to 9pm and repeat until correct day is displayed. This was a JDM model made for Japanese salary men, so the weekdays are only in Kanji. No English.