I was anxious to keep making gears after completing Steve's SP14 clock. I'm considering building a wooden clock as well and thought I'd give the laser a try cutting out a gear. So I just found and downloaded the first free wood gear file I could find and ran it on 1/8" Birch Ply. Came out beautiful. Cut in only 3 minutes with a single pass. I think my laser will do just fine producing laser cut clock parts.
Looks good. Laser cutters probably are the way of the future. The price is getting better all the time, just like 3D printers did a few years ago.
It looks like walnut veneer over a generic core. There are probably wooden clock forums with advice on the best material for clock gears. The laser cuts so fast that it is easy to experiment with different options.
I am only guessing from the 1/2" hole in the center of the escapement, but it looks like a common design feature of using wooden dowels for the arbors. So many designers think a wooden clock needs to be 100% wood. Friction will be high even with plenty of wax or graphite added to the ends. Runtime may be quite short. I would drill the ends of each dowel and add a steel pin to reduce friction. The pins will be nearly invisible, similar to the music wire arbors in my clocks.