Idiosyncratic Puma Watch - "19"

This is my new "Pollux" watch from Puma. I like it a lot, although it's a little hard to tell the time at a glance -- I have to think about it.

The odd thing is the seconds disk: it's annotated 05, 10, 15, 19, 25, 30, 35, 40, 45, 48, 55, 60. What happened to 20 and 50?

Done