Size guide

This guide includes everything you need for measuring lug width, buckle width, strap length and wrist circumference

How we measure an existing strap

Measure (in millimeters): A, B, Short and Long side of the strap indicated in the diagram below.

A = Lug Width, B = Buckle Width, E = Strap Thickness

Getting fitted for a new strap

Measure (in millimetres): A, B, C and D indicated in the diagram below

A = Lug Width, B = Buckle Width, C = Case Width, D = Wrist Circumference

 

Choosing the correct strap length

Look at the size chart below and choose the correct strap length for your measurements. For example, if my wrist circumference is 150mm and my watch case width is 20mm, then the strap length i should select is 110/70mm. If you are in between sizes, choose the larger size. 

 

(C) Width of the case (Distance between the case pins)
 (in mm) 10 15 20 25 30 35 40 45
135 105/65 105/65 100/60 100/60 95/55 95/55 90/50 90/50
140 110/70 105/65 105/65 100/60 100/60 95/55 95/55 90/50
145 110/70 110/70 105/65 105/65 100/60 100/60 95/55 95/55
150 115/75 110/70 110/70 105/65 105/65 100/60 100/60 95/55
155 115/75 115/75 110/70 110/70 105/65 105/65 100/60 100/60
160 120/80 115/75 115/75 110/70 110/70 105/65 105/65 100/60
165 120/80 120/80 115/75 115/75 110/70 105/65 105/65 100/60
170 125/85 120/80 120/80 115/75 115/75 110/70 110/70 105/65
175 125/85 125/85 120/80 120/80 115/75 115/75 110/70 110/70
180 130/90 125/85 125/85 120/80 120/80 115/75 115/75 110/70
185 130/90 130/90 125/85 125/85 120/80 120/80 115/75 115/75
190 135/95 130/90 130/90 125/85 125/85 120/80 120/80 115/75
195 135/95 135/95 130/90 130/90 125/85 125/85 120/80 120/80
200 140/100 135/95 135/95 130/90 130/90 125/85 125/85 120/85
205 140/100 140/100 135/95 135/95 130/90 130/90 125/85 125/85

 

For further questions or assistance, please contact the team on info@sebastiens.com