Both straps are probably fakes, and of no value to you since they are too narrow. You will need an 18mm or 19mm strap - measure the distance between the lugs = the width of your present strap at the lugs.
Don't worry about genuine Omega straps. They are 2-300% overpriced, and will last no longer than other quality straps. Find a nice strap
for example here and find an original 60´s 16mm steel buckle on OF or eBay.
Click to expand...