How to sew leather by hand with good looking stitching line on both sides. Consistent saddle stitch

This is my attempt to show the technique of hand sewing leather. I tried to show in as much detail as possible on how the thread goes, how to guide the needles and which side to start from. This method does not show the use of an awl, here all the holes are already punched with a pricking iron (WUTA). It is important to understand that in addition to the sewing technique, the quality of the seam is influenced by the choice of leather, the choice of the pricking iron pitch, the quality and thickness of the thread. Use this video as a guide and experiment with different pricking iron, leather, thread combinations , leatherwork, saddlestitch