AISI316 stainless steel three pieces case, micro-shot blasted and satin-finished. Dimensions (approx): diameter mm. 45.00, overall dimensions at crown mm. 51.1, height mm. 55.8, thickness mm. 14.60. Coated PVD Gun Metal bezel and case central. Screwed crown at 4 o’clock. Flat-convex sapphire watch glass, rotating bezel, engraved time scale.