Oyster, 42 mm, Oystersteel and white gold.
Sea-Dweller Watch: Oystersteel- M126600-0001.
Its middle case is crafted from a solid block of particularly corrosion-resistant Oystersteel.
In 2019, the blue and black Cerachrom bezel insert, Oystersteel and Jubilee bracelet were brought together
on the GMT-Master II for the first time.
The Oyster's middle case(the central section of the case)
is stamped and machined out of a solid block of Oystersteel, 18 ct gold or platinum.
The 18 ct gold versions of the GMT-Master II are
fitted with the three-piece link Oyster bracelet, while the Oystersteel versions are available with a five-piece link Jubilee bracelet.
Specially developed by the brand, Oystersteel belongs to the 904L steel family,
superalloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential.
The Oyster Perpetual Sea-Dweller is introduced in a yellow Rolesor version,
while the Oyster Perpetual GMT-Master II in Oystersteel with a Cerachrom bezel insert in blue
and black ceramic is fitted with a Jubilee bracelet.