The greatest weakness of the Ocean 2000 is its bracelet, which went through three redesigns, resulting in four different bracelet styles. According to a post on the official IWC forum by Christian Niemann of IWC, the second generation bracelet had a tendency to come apart while the third was prone to having the friction tubes inside the links wear out leaving the bracelet links loose. Fortunately, IWC solved all these issues with the latest bracelet design and the company keeps stock of replacement bracelets and cases (cases need to be changed to fit the new bracelet) for all Ocean 2000 owners.
OLD STYLE BRACELET (FIRST EXECUTION)Each link has ONE pushpin in the center which when depressed with a tiny screwdriver will allow the link to detach.Ref. 3702 -- NEW STYLE BRACELET (SECOND EXECUTION)Each link has TWO pushpins in the center which when depressed with a special U-shaped tool supplied allows the link to detach.Ref. 3704 -- NEWEST STYLE BRACELET (THIRD EXECUTION)Each link has a solid pin driven through the link from SIDE to SIDE to make the bracelet more durable than the previous two styles. The pins can be driven out with a fine pusher or with a special tool provided with the supply of watch or bracelet.