Brand: Hermès Model: Arceau Chronograph Reference Number: AR4.910a Serial Number: 2903508 Movement: Swiss automatic Functions: Hours, Minutes, Small Seconds, Chronograph, Date Window Case Material: Stainless Steel Case Diameter: ~38 mm (excluding crown) Dial: Black textured dial with silver-tone Arabic numerals and sub-dials Crystal: Sapphire Crystal Strap/Buckle: Black leather strap bad condition with authentic Hermès buckle Condition: Very good condition with minor signs of wear on the case back; fully operational.