The Sea-Dweller 16660 (also called “Triple Six” due to the three consecutive “6s” in the reference number) was introduced to the general public in 1978.
The changes that were introduced with this reference were different, to name a few, the helium escape valve has larger dimensions which make it more effective, doubling the water resistance of the watch from 610 m to 1220 m
For the first time, sapphire crystal is used and the caliber 1575 is replaced by the 3035.
This watch RolexSea-Dweller reference 16660 has the following characteristics:
Black dial with “Pallettoni” indexes
“Faded Blue” bezel
Excellent condition and Unpolished case
Full Set
This splendid specimen of Rolex Sea-Dweller reference 16660 it is available at our DEANGELIS Boutique in Milan.