3 Carat Real Black Diamond Watch for Men LUXURMAN Liberty Swiss Quarz with Leather Strap Real diamond watch with 3 carats of genuine diamonds. Fine Swiss-made Quartz, 5 year factory warranty. Watches come brand new, in retail packaging with 2 extra leather straps. Oversized 44mm stainless steel case. Watches Ship out Insured with signature tracking from NYC Diamond District.