Err buddies...this Transitional Ref 16660 Sea-Dweller is being listed...
by eBay PowerSeller - extract244 (555 FB) of USA ... 
The Seller would seem to have since
scored quite an impressive FB history in eBay...
In the relevant listing of the 16660 SD watch in eBay...
the description says...in BOLD...
Platinum Power Seller
Rolex Mens Seadweller Vintage
100% Authentic Rolex 100% Original
# Model: 16660 --
# Serial: "7,3##,### million serial 30-35 movement 1982 production era.
# Condition: Actual watch in photos. Movement serviced by our Master Watchmaker Certified AWCI for 30+ years
# Bracelet: Original Stainless Steel Oyster... Excellent condition. .. Folding clasp, locking clasp.
# Dial: Black Applied round baton and triangular markers in white gold with luminous inlay. Partly skeletonized hands in white gold with luminous inlay. White gold second hand with a skeletonized circle w/ luminous inlay. ..... Date window at 3o'clock. Sapphire crystle was not replaced. Has some small marks and scratches.
http://cgi.ebay.com/Mens-Rolex-Subma...3A3%7C294%3A50
The Seller has described the watch quite in detail...
The watch looks to be a handsome specimen that possesses...
even the CORRECT features of the Original Heavy Oyster Bracelet
that was unique only to the modern Rolex Sea-Dweller Diving watches...
which includes...
1. Correct Flip-lock buckle...likely with 93160 bracelet links n 592 SEL...
2. Correct Diver Extension Link n hook deployment link...
3. Clean Case...
4. Clean Bezel assembly...
5. Clean Sapphire crystal...etc. etc. etc.
Also the watch carries a Service Warranty by the Seller for 2 years...
n The Seller also adds Money Back guarantee on the watch listing...
BUT Unfortunately...
A. The 16660 SD watch has the WRONG Dial which was released as Luminova Dial marked "SWISS" in 1999...
by ROLEX about 16 years after the relevant 16660 was said to be made...
in 1982 or so....n that Luminova Dial marked "SWISS" introduced by Rolex in 1999...
was PURELY meant to fit for Ref 16600 Sea-Dweller watch model...
which was 1st introduced by Rolex from...1989 until 2008.
The Original 16660 SD watch made in 1982 with that Case Serial Nos. "7,3xx,xxx"...
should have the "RARE" Matte Dial with Tritium markers n Hands...
in order to be 100% Originally Period CORRECT...
B. The 16660 SD watch has ALSO a set of New Replacement Luminova Hands...
instead of Tritium Hands that would have been CORRECT n Original to the
relevant watch.
Perhaps the Seller is NOT aware of such details...or the Seller
may have been over enthusiastic...
when listing the 16660 SD watch in eBay by claiming the watch to be in...
"100% Authentic Rolex 100% Original"
What says the "WatchOut" buddies here...?
NOTE: Under the "SWISS" plot on Dial...the minute indexes(3 nos.) can NO Longer be seen...
missing from under the 6 o'clock marker...
This was probably caused by using the WRONG Dial fitted onto the Cal. 3035 movement...that
was supposed to be fitted to its successor - Cal. 3135 movement for Ref. 16600 SD...instead.
Here's an example of the A Series Ref 16600 Sea-Dweller watch that has the
Original "SWISS" marked Luminova Dial...in 1999.
Do notice the 3 minute indexes under "SWISS" plot below the 6 o'clock marker...