Sinn watch 1746 classic 1746011 alligator strap possibly one of our favourite sinn dress watches this sinn 1746 classic watch has been manufactured in germany with a stunning mix of stylish design tropes an exquisite self winding mechanism and a luxurious black alligator leather strap having become famed for their many patented technologies sinn have enhanced this 1746 classic watch with their sinn d3 system this unique technology allows the push piece pins and crown shafts to be mounted