How To Install; How To Remove - Seiko 4T57A Technical Manual & Parts Catalogue

TECHNICAL GUIDE
1 HOuR, mINuTE ANd SEcONd HANdS
● How to install
1. Place the movement directly on a movement holder or
the like and press in the hands.
2. Install the hour, minute and second hands at the
"12"o'clock position.
3. Install the chrono minute and second hands at the
"0"o'clock position.
[ Reference ] The power of press hands
Minute & Hour Hands
Second Hand
Chrono Minute & Second Hands < 3kg
23 BATTERy
● How to remove or install the battery
1) Remove the hook of the switch spring's battery clamp.
2) Insert the battery sideways, and have the hook of the switch spring's battery clamp catch the
main plate.
1) When Removing
31 SETTINg STEm
● How to remove
While pushing the indented portion of the
arrow, pull out the setting stem.
< 5kg
< 5kg
16 Switch spring
Battery clamp
Main plate
7/11
2) When Installing
Cal. 4T57A
Push