So I have a cackle hatchery silver spangled Spitzhauben hen. She is almost 1 year old and has been laying for a couple months. Last night I went to collect eggs after dark. She was in the nesting box so my first reaction was to be worried about her because this is a non-setting breed right? Well...
It is possible. I'm not certain though because even the one I think is a pullet is not nearly as developed as the hen in your picture. Neither of mine have red wattles starting yet. It's very possible that they are slow maturing because they free range for most of their food.
I can only speak to the cackle hatchery Spitzhaubens but I adore mine. They are in a flock of Dominiques, easter eggers, Black Copper Marans', White New Jersey Giant, Buff Orpingtons, Wyandotte, and a Bourbon Red Turkey. I bought 10 and now only have a pair left. They are about 6 months old...