This Umnyashov Sputnik #1 is a Russian watch with a Vostok 2431.01 movement which offers a practical and fun 24 hour display. Limited Edition watch number 358/500. Display model of store. New old stock. Rubber strap full size, never cut to size. Comes with box and manual. Small scratches on the clasp, caseback still has original plastic. Rubber strap full size, never cut to size. The strap has a length of approximately 21cm, making it suitable for wrists with a circumference of approximately 19.5cm. The band can be shortened. Case diameter measured without crown: 45mm Case thickness: 14mm Lugs: 20mm Lug to lug: 53mm Display caseback Screw down crown guard