• Insert the jaws into the tool making sure the curve section is facing inwards. 
• Adjust the distance between the pegs in order to accommodate different diameters of watches. 
• Use the thumb screw at the back to rotate left or right to adjust it in or out. 
• The jaws are adjustable from 18 to 65mm so you can accommodate most watch diameters with this.

"A solid, well made Swiss quality wrench. I think it's great value and worth every penny. I certainly wouldn't use anything less. The very fine pitch of the screw thread allows for very, very fine smooth adjustment. Also the jaws are very sturdy and there's no play or wobble at the tips. The whole thing is very solidly made and comfortable to use as well" - Dave Wilson