Forum acronyms and vocabulary

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This will be a living list and updated when new abbreviations become known and added..


AD = Authorized Dealer (of Rolex or another watchmaker)
AK = Air King
AR - Anti-reflective coating
ARW= Authorized Rolex Watchmaker
BAR = Pressure/Depth rating (e.g.30BAR, 300m/1000ft)
BLNR = Bleu/Noir (French for Blue/Black)
Bluesy = Blue TT Sub
BNIB = Brand New In Box
BPH = Beats per hour ie. 28,800 bph, 36,000 bph
Cal = Calibre (of a movement)
COSC = Contrôle Officiel Suisse des Chronomètres" (Certified Chronometer)
Coke = Black/Red GMT Insert
CPO = Certified Pre Owned (a Rolex program for Dealers)
DD = Day-Date
DJ = DateJust
DLC = Diamond Like Carbon (usually blacked-out cases)
DRSD = Double Red Sea Dweller
DSSD = Deep Sea Sea Dweller
EXP = Explorer
EXP II = Explorer II
Flip = Changing watches in one's collection
FSOT = For Sale Or Trade
GMT = Greenwich Mean Time
GMT/GMT II = GMT Master II (Rolex Professional line model)
GMTIIC = GMTII with Ceramic Bezel
GV = Glace Verti (green-crystal of the Milgauss)
HEV = Helium Escape Valve
IBTL = In Before The Lock
JUB = Jubilee Bracelet
LEC = Laser Etched Coronet
LN = Lunette Noir (Black bezel insert)
LNIB = Like New In Box
LV = Lunette Verti (Green bezel insert)
MIB = Mint In Box
MOP = Mother Of Pearl
MSRP = Manufacturer's Suggested Retail Price,
NATO = North Atlantic Treaty Organization. refers to fabric straps used on issue watches
ND = Non-Date (as in Sub ND)
NOS = New Old Stock
NSFW = Not Safe For Work
OEM = Original Equipment Manufacturer
OF = Oyster Flex, rubber over titanium Rolex strap
OP = Oyster Perpetual
PCL = Polished Center Links
Pepsi = Red/Blue GMT Insert
Perpetual = Self Winding/Automatic movement
PM = Precious Metal
PP = Patek Philippe
PVD = Physical Vapor Deposition (spray on metal)
PT = Platinum
Rehaut = French for flange. The engraved ring/flange under the crystal.
RER = Rolex Engraved (etched) Rehaut
RG = Rose Gold
Root Beer = Brown TT GMT
RSC = Rolex Service Center
SCL = Solid Center Links
SD = Sea Dweller
SEL = Solid End Link (referring to bracelet)
Serti dial = a watch dial that is set with precious stones
SL / L = Super Luminova, Luminova
SMP = Seamaster Professional (Omega)
Speedy = Speedmaster (Omega)
SS = Stainless Steel
Sub = Submariner
T<25 = Tritium based dial (Less than 25 millicuries of radioactive tritium)
Ti = Titanium
TOG = Turn-O-Graph
TT = Two Tone (Bi-metal- yellow gold & Stainless Steel)
WG = White Gold
WIS = Watch Idiot Savant
WTB = Want To Buy
WTS = Want to Sell
WTT = Want to Trade
YG = Yellow Gold
YM = Yacht Master
YMMV = Your Mileage May Vary (you may have a different experience)

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