I have kept this in storage, having hardly used it. I believe it will work immediately with a battery replacement. Size: Case: Approximately 25mm x 25mm Wrist circumference: Approximately 18.5cm *Measured by a layman (*Please understand that there may be slight measurement errors.) Includes 5 replacement bezels (including the one attached to the main body) Please consider purchasing only if you understand that this is a vintage/used item. Please consider purchasing based on the images provided. Feel free to ask any questions you may have.