Martin Braun La Sonnerie I. One of 100 made. 42mm Case. Made in steel along with a Louisiana Crocodile strap. The second winder is for the alarm which is ideal to set if you don’t want meetings to run very long. My band is actually a midnight blue which looks black. I just ordered a brown Croc strap and am debating if I should also go for the bright blue or yellow for a little fun?