The camera uses the battery for the meter only. The shutter is entirely mechanical and works without batteries.23 jul 2007
Do Pentax cameras need batteries?
Pentax recommends a 1.5-volt LR44 alkaline battery or a SR44 silver-oxide battery, or an equivalent.
Can you use Pentax K1000 without battery?
The K1000 is an almost-all metal, mechanically (springs, gears, levers) controlled, manual-focus SLR with manual-exposure control. It is completely operable without batteries. Batteries are only required (one A76 or S76, or LR44 or SR44, silver oxide 357 or 303) for the light metering information in the viewfinder.
How do you change a Pentax Spotmatic battery?
https://www.youtube.com/watch?v=Wzx-OxNr-Cs
What battery does a Pentax Spotmatic f use?
The Wein Cell mercury replacement battery is a zinc-air battery that gives 1.35V and is recommended for use in the Pentax Spotmatic and Olympus OM-1 cameras.