Bill
32074
Rolex 1680 Red Submariner. Anatomy of the Mk5.
The basics open six’s, Red Submariner tex directly applied onto tye black. Not much but it is all in the details.
This one 3xx mil serial puts it in 1971. But as with many Rolex watches the date sold can be a number of years later as the date stamp on the guarantee papers is the date sold. However older watches with chronometer certificate are date stamped on the date of certification. Details.

Rolex 1680 Red Submariner MK5

Patented diver extension

9315 folded Bracelet 280 or 380 end links

Original tube. triplock without external o-ring

Original Triplock crown
In 1970, Rolex released a third generation winding crown they called Triplock. As its name suggests, the Triplock version features three sealed zones and it made its debut on the Sea-Dweller dive watch.

Having spare parts is essential as they are rare as hens teeth and are pricey. In the picture the three flavors 7000 twinlock 702 triplock original to the watch 7030 latest.