Seiko M-6 Instructions Manual page 74

A
A Type
1
Lift up the clasp to release
the buckle.
Fixed loop
Moveable loop
3
Take the pin out of the adjustment hole,
adjust the size of the strap by sliding it
back and forth, and then put the pin back
into the appropriate adjustment hole.
Buckle
Flap
Pin
Adjustment hole
2
Open the fl ap.
4
Close the fl ap.
3
73