The trouble with mercury batteries (and what to do) – - Daniel J. Schneider
PX625 Wein Cell Mercury Replacement Battery for Pentax Spotmatic F and many other cameras
The Vintage Collective - No more battery problems for the Pentax Spotmatic SP The Maxell 394 silver oxide battery os a replacement for the discountinued PX-400 (RM400R) battery 🔋 🎞 Maxell SR936SW (
ImagingPixel: Pentax Spotmatic SP 35mm MF SLR Film Camera Review
3 PENTAX SPs
Pentax Asahi Spotmatic battery lid stripped, any ideas??? : r/pentax