The shenanigans went down Wednesday night at 1 OAK in Los Angeles where the rapper's celebrity friends gathered to celebrate (yet again) another 31st birthday party.
O.T. can be seen dowsing this Rolex with bottles of bubbles ... and it wasn't just his watch that got doused, another expensive timepiece got showered in champagne too.
O.T. just released another hit, "Cash On It," and loved every second of the VIP celebration, which of course was flooded with all the rosé he could handle, in addition to the champagne.