Step 1 : Unscrew !

Take a simple flathead screwdriver and unscrew the screw next to the buckle.

Step 2: Adjust !

I slide the enchapure and then remove or add the number of links I need.

Step 3: Checking !

I check that the stitching is on the same side as the tip of the belt, then insert it into the first link.

Step 4: Revisit !

I match the screw with the insert, then screw it back in.

That's it !

A leather belt adjusted to the right size.
Remember to keep the extra links for possible future readjustment.