The Rolex 16808 is the 18k gold version of the 16800, which was the transitional Submariner that was produced between around 1977-1985. It replaced the ref 1680 and the 16808 replaced the 18k gold 1680/8.
The most obvious difference between a 1680/8 and a 16808 was the use of sapphire crystals on 16808 instead of plexi crystals on 1680/8. The movement was also upgraded to 3035 with the quick set feature that allows you to set the date quickly. The depth rating also improved to 1000 ft/ 300 M instead of 200m. These features make the 16808 a more usable daily watch.
Through the production of the 16808, it featured both the nipple matte dial and the glossy lacquer dial with markers with white gold surroundings. On its predecessor the 1680/8, one of the biggest features is its nipple dial. Therefore, as the last generation of Submariner that featured the nipple dial, the nipple dial version of the 16808 is more expensive than the lacquer dial with markers with white gold surrounding, which can still be found on 16808’s successor, the 16618.
The correct bracelet for a 16808 should be a 92908 bracelet with 46 end link. The number 46 is engraved on the inner part of the end link which is only visible when it is taken off from the case. The insert of the 16808 is the typical 80s Submariner insert which no longer features fat fonts as those on 1680/8.
The 16808 with a nipple matte dial is a cool watch itself as it has the best of two different generations of Submariner. While you can find vintage cues from the nipple matte dial, a modern touch, which is the sapphire crystal, blends the two generations together perfectly in one watch. The movement is also way more convenient and reliable while the bracelet is also much tougher.
The investment value of a 16808 is high while it is not as hard to be found as the 1680/8. As it was a watch produced in the 1980s, it is easier to find examples in good condition. Also, the threshold of collecting it is not as high as 1680/8. A 16808 without papers and box is usually around 220,000hkd to 230,000hkd while a 1680/8 in good condition could cost you north of 300,000hkd. The 16808 with nipple dial is a collectible piece that gives you the looks of a 1680/8 while paying way less.
The photos here are from my 8.5mil 16808 unpolished. It does not come with any paper and it is for sale at 216,000hkd.