BBT boutique Speedmaster series running seconds chronograph mechanical men's watch, 9300 a

BBT boutique Speedmaster series running seconds chronograph mechanical men's watch, 9300 automatic movement, double-sided convex mirror, matched with 316L stainless steel strap, super luminous, super waterproof performance, diameter: 42mm, the movement structure is exactly the same as the original, no flaws, it is perfect