Seiko 6720 Movement Details

Seiko caliber 6720 is a high grade analog quartz watch movement produced from around 1980.

Sub-brands: Credor
Battery:TR709SW / (Needs to be sent to CoServ for replacement.)
Accuracy:±15 seconds/month
Day / date?No
GMT / world time?No
Chronograph?No
Height:0.89mm
Notes:The world's thinnest movement when it was launched in 1980.