Sinn Spezialuhren 556 I EGV Frankfurt am Main

The Sinn 556 I EGV Frankfurt am Main, reference 556.017, has a 38.5 mm satinised steel case. The case is 11 mm thick with a see-through back, water resistant to 200 metres. A ship silhouette appears on the glossy black dial beneath sapphire crystal. Central seconds and a date join the hour display. Calibre ETA 2824-2 uses a self-winding mechanism. Luminous indices surround the hands, while a screw-down crown sits at the case side.