Secret watch with a diamond cover on the dial (1955)

Secret watch with a diamond cover on the dial (1955)

The Ladymatic (1956), which became popular as the world's smallest automatic women's watch at the time.

Secret watch with 21 baguette-cut orange topazes (1956)

Secret watch with 21 baguette-cut orange topazes (1956)

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display

Rare women's timepieces from the museum's collection on display