We were discussing the link bracelet in another thread the other day, and OllyW brought up the fact that one of the normal features of such a band, is a way to make micro-adjustments.
That is, the ability to adjust the size by less than the width of a removable link (e.g. by 1/4-1/2 link for most, or in 2mm increments for Rolex).
Many people use this both to initially adjust the size to be most comfortable and/or tight, and also sometimes to change it during the day as their wrist expands/contracts due to hydration.
View attachment 540359
With common adjusters you can use a tack or toothpick to push in the pin. Fancier link clasps like Rolex let you just flip up the last link and slide to the desired position.
Did anyone notice if the Apple link bracelet had any micro-adjustment?