Case diameter (Crown not included). 34.7mm(1.36 inch). 18cm(7.09 inch). The size measured by hand may have a deviation of ±1-2cm. The chart is only for reference. All of our products are 100% Authentic Guarantee. We guarantee all items are 100% authentic. Unless there is a third-party assessment e. A certificate is proved, we will not accept any request for a return just because you only have reasonable suspicion the item is not authentic. We were established in 2024, based in Hyogo, Japan. Important Condition Note – As-Is. We have not replaced the battery, and the movement is UNTESTED. Requiring repair or intended for parts use.