17jewels,Grd.108 mod.5 sn/n3020591=1912 2 finger bridge pw/ps Movt marked No.108 Ateel Escape Wheel,Safety Pinon.Housed in Illinois Spartan case.Nice damaskeened .What is Ateel Escape wheel? Nice watch and a good runner. Roger

bezel off

back cover

movt1

movt 2

That looks like a great looking watch, and it is no doubt very RARE, because it likely is the only one known with this Ateel escape wheel.
Nice clean looking watch, nice pick.
Bill

Steel Escape Wheel. Harder and more precise than a brass escape wheels used in lower grade watches.

William

Here's your steel escapement wheel Roger. It's the first little gear in the gear train with the white arrow.

Some were brass before RR standards started required a steel escapement wheel. Then most all the manufacturers went to the steel wheel on all their lines of watches.

regards,
bb
[see attachment]

William & I have it pinned & pointed down & out

I was posting while William was already eating dinner

regards,
bb

Thank you guys.I knew it had a steel escape wheel but I did't or don't know what ateel is.Perhaps a play on words by Hampden or a mis-spelling?