The Khaki Aviation Pilot Pioneer Mechanical Watch in stunning aviation blue celebrates Hamilton's history in timing the skies. Movement: Mechanical H-50. Case Size: 36mm x 33mm. Case Material: stainless steel. Crystal: Mineral. Water Resistance: 100m. Dial Colour: blue. Power reserve: 80 hour. Strap type: textile. Buckle Type: Pin. 2 year manufacturer warranty. Presented in official Hamilton packaging.