Yes! Many can be used w/o batteries. Here's a great place to do comparisons....

I'll speak what I know the most about, and that's the Canon EF. It's a fabulous camera! It's half electronic, and half mechanical. The common speeds we all use, 1/1000 to 1/2" are all mechanical, thus no batteries required. From 1" to 30" (yes, there's a dial for 30 seconds!) are electronically controlled. BULB setting is naturally, mechanical.

The meter takes two commonly available alkaline batteries and gives dead on exposures (slide film, no problem) because it has a compensating circuit that regulates the voltage. Not to mention it's a silicon meter that goes down to EV -2.

It's got mirror-lock-up, multiple exposures, flash sync of 1/125", etc., and it's very intuitive to use.

Simply put, I love it.

Other mechanical cameras that I know of are the old F-1 and the FTb. I'm sure there are many others.

More on the EF....