Case in stainless steel 316L, Ø40mm with basin-shape profile. Water-resistant to 3 bar. Total thickness of 11mm, crystal included. Box type sapphire crystal with double sided anti-reflective coating. Case back in stainless steel 316L with lugs, stamped logo and transparent sapphire crystal. Dial in polished black onyx stone. Smooth black cow leather strap with vegetal tanning, black calf leather lining. Tongue buckle in stainless steel 316L. Swiss mechanical movement (Sellita SW300-1 Premium) with automatic winding, 42 hours of power reserve, 25 jewels, 28’800 vibrations/hour (4Hz), displaying hours, minutes and seconds with hands.