The Sakura Petal (round) is a Japanese subminiature novelty camera made by Sakura Seiki Co. in the post-war period. It is one of the smallest production cameras ever made, using tiny circular film cut to fit its round body, and was sold as a curiosity rather than a practical photographic tool. A companion octagonal version of the Petal was also produced, making the round variant one of two body shapes collectors track.

At recent UK auction, hammer prices for the Sakura Petal (round) have sat in the £210–£340 range across the records to hand, with a median around £212 and the highest result coming from a 2015 sale. As of 2026 the camera remains a specialist collector's piece, and auction-room values are highly condition-sensitive: examples with the original fitted case, tiny film spools, and unworn plating sell for notably more than loose bodies. Because only a handful of saleroom results are available, a single well-presented example can shift the apparent market, so the figures above are a guide to what a Petal (round) is worth rather than a fixed price.