I own an Aqua Terra (23113422102002) co-axial 41.5mm case. The specs on several sites list the bandwidth as 22.9mm, yet when I measure the space, it is a tad over 20mm (.8 inches). I want to order a new strap, but I'm concerned the width might be wrong. Has anybody changed their band on a AT similar to mine, and if so, what measurement did you use?