Which strap option to choose?

First, please check the case back of your watch and use the guide below:

About theMX10 Black PVD Bracelet

Designed to fit all MX10 models this gun metal PVD bracelet features a double locking clasp to ensure maximum strength and reliability. A great way to upgrade from a polymer bracelet MX10, giving your watch a brand new stylish look and maintaining the durable nature of the watch you have come to rely on. (Does NOT fit 1st Generation with circular date window).