Hello,
Here is a Sicura with windows for hour, minute and date. The little propeller keeps track of the seconds. I overhauled two of these so far....It is powered by BFG 866 with 17 jewels---not one on the pallet lever itself! Apparently they ran out of jewels at that point or something so they used little pins. Keeps decent time though, and reminds me of old-style parking meters we had all over NYC about 10 years ago. Check the Watch Repair Help & Advice forum to see the movement tear-down and rebuild of the bfg866.
JC