SEIKO Sports 100 SQ (circ 1985) A904-509A Battery Replacement

SEIKO Sports 100 SQ (circ 1985)
A904-509A Battery Replacement
Battery: CR2016 3v
Note: After installing the battery (With tweezers) short circuit the AC terminal (inside metal frame) & the battery + (See video 4:55).

[@jafabarks174]

Well done having two! Hard to find in good working condition. I was amazed at the build quality of this watch 😊

[@renejackson7652]

I have two of these and still wear them.