The Sixth digit while in the reference range, In the meantime, lets you know which kind of steel the watch is product of. For watches using a reference amount of below 6 digits, the final digit during the reference amount lets you know what metal it's product of. For those https://www.watchesworld.com/a-history-of-watch-reference-numbers/
Omega Watches - An Overview
Internet 14 days ago davidp998jwh3Web Directory Categories
Web Directory Search
New Site Listings