Please look at the photos for the most accurate description. I tested and it does work, however it gets caught on the 7 for a couple of seconds and a little past the 10 for a couple of seconds.
This vintage Marcel & Cie pocket timer is a Swiss-made stop watch with 1 jewel and 1/10 accuracy. The timer is housed in its original box and is perfect for measuring speed during running and jogging. It features a timer and stop watch function with a decimal measurement system. The hand-held timer is made of metal and is suitable for unisex adults.
The timer is language-compatible with English and comes with no manufacturer warranty. The sport/activity it is designed for is running & jogging. Trust the quality and precision of Marcel & Cie with this vintage pocket timer.