Montblanc Rectangular Pin Buckle Reversible Leather Belt - Black/Grey Rectangular Frame Shiny Stainless Steel Pin Buckle. Self-adjustable, 1 inch x 47.25 inches, reversible black & flannel Saffiano-printed leather strap matching the Montblanc Sartorial Leather Goods range. This reversible belt features a sober stainless steel buckle and an elegant calf leather strap in black on one side and flannel on the other, making it suitable for both business and casual wear. Features: