You were looking at a detail shot of the hinge! This watch is quite small, about 3.5 cm. (1 3/8 in.). It has a tiny key and it keeps perfect time.
![Avatar](https://cdn.statically.io/img/i.pinimg.com/140x140_RS/45/be/3a/45be3af0287b880c376b4c6b45fbde46.jpg)
CESAR MIGUEL