Tissot watch pr100 quartzthe tissot pr100 timepiece incorporates an array of charming features that are instantly notable of the watch making professionals encased within a 39mm stainless steel shell with a stunning yellow gold coated ring the timepiece stands just 9mm off the wearers wrist allowing for a subtle and understated sophistication to radiate protected inside a crisp sapphire crystal glass the window has been created from fusing sapphire at high temperatures and extreme pressure