Canvas and leather, perfect for your 

Jaeger-LeCoultre Grande Reverso

.
Each process is done by hand, cutting, gluing, saddle stitch.
It is made very carefully, and will be resistant for a long time
The overall length of 200mm 
Width 22mm on the lug, 20mm on the buckle
Very high quality. 
Handmade Dalipi crafts
If you have any questions, contact me please.