Front
Crown
Serial Number: 551586
10K RGP

This is the most similar I’ve found online, but it’s clearly less intricately designed. They say that theirs is from the 1930s, so mine likely is too if they’re right about theirs. However, their listing says that their watch is quartz and from Switzerland, so clearly the have no clue what they’re talking about as it’s very easy to confirm that neither can be true.