V9 Factory 2025 highly recommends the professional quality upgrade of the V8 version, featuring the Cartier Ballon Bleu series watches in 28MM/33MM/36MM/42MM sizes.1. Transparency: More radiant and transparent, showcasing a unique dazzling fire under sunlight.2. Material: Made of full steel, with a sapphire glass surface, blue hands, and a blue spinel crown.3. Size: Women's models in 28mm Swiss quartz movement, 33mm and 36mm NH05 mechanical movement; men's model in 42mm/2824 mechanical movement.V9 Factory 2025 is dedicated to creating exquisite watches, a true artisan's work. We welcome your appreciation of the 33mm diameter mechanical model.