Seiko 5626 Movement Details

Seiko caliber 5626 is a high grade automatic watch movement produced from around 1968.

Sub-brands: King Seiko
Day / date?Day + date
GMT / world time?No
Rate:28,800 bph
Number of jewels:25
Lift angle:56º
Size / diameter:25.6mm or 11.5"
Stem code: 354560
Balance wheel code: 310561
Mainspring code: 401565
Development division:Suwa (Nagano)
Notes:Chronometer. The same as cal. 5625 but with day display (as well as date). The plastic star-shaped date corrector wheel is fragile and prone to breaking, resulting in the day/date setting not working. As these watches get older, it’s getting harder to find unbroken replacement wheels and creating new ones, e.g. from brass or other metal, is fiddly and time consuming.
PDF guides: Technical guide for 5626A
Related movements: 5621 5625