STRAP DIMENSIONS
The Leather Strap fits approximately 7" to 9" wrists. 

How to measure your wrist:

WATCH SIZE

Please see the back of your watch to find out your watch case size (49mm, 46mm, 45mm, 44mm, 42mm, 41mm, 40mm, or 38mm).

Apple Watch Ultra: Choose 49mm

Series 10,9,SE and earlier versions come in two sizes: If you have the bigger size, choose 44mm / 45mm / 46mm. If you have the smaller size, choose 40mm / 41mm / 42mm.