Omega Stopwatch Weight: 224 g Case diameter: 6 cm Case diameter including crown: 6.3 cm Case thickness: 2 cm Works properly ( sorry but i'm not a specialist to open the watch to show the movement) It was this model timer that was used in the 1952 Olympics and other top sporting events such as the world record breaking event when Roger Bannister broke the world mile record on the 6th May 1954. Those used in the Olympics were marked as such on their dials 'Olympic' together with their inventry number. For sale here is an example of the Omega MG1135 that has seen very little action and has been extremely well cared for. 1/10th second split-second timer. One revolution in 30 seconds, 30-minute counter, 16 hour power reserve. Start and stop through the pusher on the right, intermediate stop and reset of the split-seconds through the pusher on the left, reset through the crown when the timer is stopped. Perfect used condition. Will be send with B Post Belgium, track and trace.