Sinn Spezialuhren 1739 St I 4N F.A.Z.

The Sinn 1739 St I 4N F.A.Z., reference 1739.013, is a limited edition of 100 pieces with a 39 mm steel case. Polished surfaces and a see-through case back distinguish the 9.1 mm thick case, water resistant to 100 metres. A matte-silk blue dial displays hours and minutes beneath a curved sapphire crystal. Rose gold plating finishes the hands and the hand-attached appliques. The watch is resistant to low pressure. The self-winding calibre SW300-1 has a rotor engraved with the individual edition number.