Watch: RégulateurSINN. Stainless steel with gold-plated bezel. ø 38 mm. 50 grams. Manual winding. Swiss movement, caliber Unitas 6425. movement with Geneva stripes. 17 jewels. Sapphire crystal, white dial, blued steel hands. Subdials for small seconds and hour indication. Circumferential date display. Glazed case back. Leather strap with pin buckle. Chronoswiss box. The company was founded in 1961 by Helmut Sinn. The pilot decided to have watches made in Switzerland under its own brand and sell them in Germany In short time test functional. The watch comes from an extensive collection estate. The watches were never or hardly worn, they have not been moved over a long period of time. For function and accuracy we can not guarantee * Partner auction Bergmann. Provenance : estate of a private collection.