Sinn Spezialuhren 1739 Ag B

The Sinn 1739 Ag B, reference 1739.021, has a polished silver case measuring 39 mm in diameter. Argentium silver alloy protects the case against oxidation. The 9.1 mm thick case has a see-through back and is water resistant to 100 metres. The blue electroplated dial shows hours and minutes under sapphire crystal. Sunburst decoration meets rhodium-plated hands and hand-attached appliques. Mechanical timekeeping comes from the self-winding calibre SW300-1.