Sinn Spezialuhren 456 St A

The Sinn 456 St A, reference 456.011, uses a polished 28 mm steel case with a see-through back, water resistant to 200 metres. The 9 mm thick case resists low pressure. A UV-resistant blue electroplated dial displays central seconds and the date beneath a sapphire crystal. Its appliques are attached by hand beside luminous hour and minute hands. Calibre ETA 2671 winds automatically and is shock resistant. The movement is anti-magnetic.