some of my marble clocks

some of my small marble clocks. the first is a Semca swiss made, marble & brass, alarm clock. it's only 6 1/2" tall. middle pic is a 5 1/2" Elgin national watch co. 8 day with a swing arm. the last one only says made in France. The back is solid white marble. base is 9" x 3 1/2".and about 8" tall. I don't know what the bird is made of. It's some sort of metal. I have had them for years.