GF Factory s Breitling Aviation Watch Series .Still upholding the original quality and top notch craftsmanship, highly recommended.Case diameter: MM, in line with authentic size.The watch features calfskin leather that is identical to the genuine article in both material and detail.In terms of movement, it uses a high quality cal.01 custom plate movement, with each movement carefully selected to ensure optimal stability.The casing maintains the original quality with precision in material selection and design drawings, as well as standardized processing and polishing accuracy. Every step is strictly supervised to achieve the highest degree of authenticity, providing consumers with a sense of integrity.The glass uses the same dome shaped sapphire crystal as the original, with anti reflective coating for high transparency, maintaining the blue light refraction at the same angle.While the replication difficulty is not very high, attention to detail is essential for a successful execution.All components are interchangeable with the genuine product, which qualifies it as a top tier replica a work of craftsmanship. We welcome your appreciation.