Handmade Leather Two-Tone Wallet Case with Money Clip, Vintabe Golden Brown, with Cordovan Marbled card slot to Contrast.  
 
Leather sewing machines commonly use the "lock stitch." , If just one loop of a lock stitch is broken, the other side will automatically be loosened; often, this process of unraveling will continue until the entire product is ruined. for hand-stitched leather products, it will not unravel if one stitch is broken because of its special construction from saddle stitch that is only achieved by hand!

Though slower, hand sewing is superior to machine sewing. It is the best way to sew leather together,the hand stitched leather product will be more durable and stand the test of time !!