Bronze
For the retrograde indications and the regulator Version 2 we have bronze cases (CuSn10) of 40 mm and 43 mm in diameter. These cases are gold plated to protect the surface. The plating can be of a classical bronze color or deep yellow. The cases are also fitted with two sapphire glasses and screwed band tubes. As each bronze case is a unique item we can respond to the customer's individual wishes.