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. 

 

X Axis ( Case Width ), Y Axis ( Wrist Circumference ) 
 
 (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