Rolex Sea-Dweller 1665 MK3 Matte Dial 1939 The rare chronometer-rated automatic bumper

The rare chronometer-rated automatic bumper movement calibre 30

- Fully serviced by Patek Philippe service center in 2023

zum Einkaufen oder für den Wochenendausflug an den Strand

- Omega manual-wind movement cal

We’ve called this the Upside Down because the reference number is between the lugs at the six o’clock end of the watch and the serial number is at 12

Rolex Sea-Dweller 1665 MK3 Matte Dial 1939 The rare chronometer-rated automatic bumperThe Rolex Sea Dweller was introduced in 1967 as the ultimate tool watch for professional saturation divers. Its development was driven by a very real challenge faced by the commercial deep sea diving industry. During the 1960s, commercial divers working on pioneering saturation diving projectssuch as France's COMEX and the U. S. Navy's SEALAB programspent days living and working inside pressurised underwater habitats while breathing a helium rich gas