Depending on the weather or season, your wrist-size might slightly change over time. The maison Cartier created an ingenious way to enlarge or reduce the bracelet length by moving a simple screw without touching the links.
The second hole shown in the image on the left will enlarge the bracelet and give you more comfort. The first hole shown in the image on the right will allow for a tighter fitting bracelet. No need to remove or add links with this small hack all you need is a small screwdriver to remove and re-insert the screw for the desired length!