Sinn Spezialuhren 556 A

The Sinn 556 A, reference 556.014, has a satinised steel case measuring 38.5 mm in diameter. A date display joins central seconds on the matte black dial beneath sapphire crystal. Luminous numerals and indices form the hour markings. Self-winding calibre SW200-2 runs inside the case. The case is 11 mm thick with a see-through back, water resistant to 200 metres. A screw-down crown is fitted along the case flank.