Here some of the current terms and abbreviations you will find here in this forum - and their translation

AK = AirKing
AKD = AirKing Date
Bi = Bicolor
D = Daytona
DD = DayDate
DJ = DateJust
Ex = Explorer
Ex2 = Explorer II
YG = Yellow Gold
LV = Lunette Verte
LN = Lunette Noir
MoP = Mother of Pearls
OP = Oyster Perpetual
OQ = OysterQuartz
Pt = Platinum
Pepsi = GMT Master (II) with red/blue Bezel
RG = Red gold / pink gold
SD = Sea Dweller
SEL = Solid End Links
SL = Super Luminova
Sub = Submariner
SubD = Submariner with date
S/G = SS/GG Steel/Gold
SS = Stainless Steel
T = Tritium
TT = Two Tone (SS/GG)
WG = White Gold
YM = Yachtmaster


NOS = New Old Stock
CAL = Caliber (Number of Movement)
Nato-Strap= Nylonstrap

hacking = Second hand stops when crown is pulled out
non-hacking = Second hand keeps moving although crown is pulled out
((c) FAQ<img src="images/smilies/at.gif" ...mg" />R-L-X.de)

Just add to the list whatever you may find interesting