Is your vintage Bulova Accutron watch running slow or stopped? It might just need a fresh battery! This Energizer 387S is the exact coin cell battery made for Accutron tuning fork movements like caliber 214 and 218. These watches are classics, and they need the right power to keep that smooth sweep going. The battery is brand new and ready to pop into your timepiece. Whether you're a collector, a watch repair hobbyist, or just getting your dad's old Accutron ticking again, this is the battery you need. Don't risk damaging your watch with a generic cell—grab the correct 387S and enjoy accurate, vintage timekeeping once more!