Hello Diamond Empress, welcome to myBulova, this is a lovely little watch. It looks to be in wonderful condition. I've looked through all our adverts on site but haven't found one showing this model. The late 1950's and early 1960's seem to be the hey day of diamond womens watches, Bulova made dozen and dozens of different models. I'm not 100% sure that this one is actually a Diamond Empress model, we find that there is a high likehood that watches and display case are often mismatched, even from the original point of sale.
Without an advert I'm tentative on naming this one. Thank you for sharing it!
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