The Runwell was engineered with an obsessive focus to ensure the highest quality. Argonite 1069 high-accuracy movement is the powerful motor behind the design. Largo Tan leather strap with tang closure. Slate blue dial with matte velvet finish. Arabic numerals and Super-LumiNova hands with remote second hand sweep. Polished stainless steel bezel. Classic pumpkin crown. Double-domed sapphire crystal dial window. Strap is interchangeable w/ compatible bands. Strap width: 20mm. Case thickness: 10.1mm. Case size: 41mm. Water resistant to 50 M.