STEP 1: LOCATE THE QUICK-RELEASE SPRING
The quick-release spring is located on the back of the watch strap.
STEP 2: LOOSEN THE SPRING BAR
Pull the quick-release mechanism towards the middle of the watch strap as you are pulling the strap away from the lever.
STEP 3: REMOVE THE STRAP
Finally, slide the spring bar out of the other lug, and remove the watch strap.
STEP 4: INSTALLING THE STRAP BACK
First, install one side of the spring bar to the case by pushing the spring bar lever with your finger and just guiding it to the case. Make sure it pops in properly.
TO ATTACH A NATO STRAP, FOLLOW THE INSTRUCTIONS BELOW
STEP 1: ATTACH THE SPRING BAR TO THE CASE
Be sure both ends of the spring bar are placed in the grooves of the watch case.
STEP 2: PREPARE THE NEW STRAP
There are two parts to the strap. Pull the longer strap up through the spring bar.
STEP 3: SLIDE THE STRAP THROUGH THE LOOP
Insert the long end of the strap through the metallic loop at the end of the shorter part of the strap and then tighten.