Accucel-1 energy cell as replacement for mercury cell 343, 387 Output voltage: 1.35 V Compatible with Bulova Accutron Spaceview 214, 219, 2310, but battery strap contact points need to be checked and adjusted if necessary. The Accucell-1 is made specifically for your tuning fork watch to operate within factory specifications and to ensure the safety and longevity of the silver oxide cell. ATTENTION: This cell contains very delicate and shock-sensitive components that can be damaged by handling or dropping. Only handle from the side of the cell. The use of plastic tweezers is recommended. .
eBay