Sinn Spezialuhren 556 A RS

The Sinn 556 A RS, reference 556.0141, has a 38.5 mm steel case with a satinised surface. A red central seconds hand crosses the matte black dial beneath sapphire crystal. Numerals and indices have luminous coatings around the date display. The 11 mm thick case includes a see-through back and is water resistant to 200 metres. Calibre SW200-1 is self-winding. The crown has a screw-down construction at the side of the case.