MU DU Double matic

This is a vintage MuDu “Doublematic” automatic wristwatch from the 1950s–1960s (likely mid-to-late 1950s or early 1960s based on the design and movement style). From your photo: • Brand & markings: “MuDu” (sometimes stylized as MuDi or MuDu in listings) on the dial, with “30 JEWELS” prominently below, “diplomatic” in lowercase script (likely part of the model name “Doublematic Diplomatic” or similar variant), and “d.s. Diplomatic” or just “diplomatic” as a sub-line. The dial is off-white/cream with gold baton markers (Arabic numerals at 12, 3, 6, 9; stick markers elsewhere), dauphine-style hands (gold with black accents), and a subtle textured or patterned background