Key to abbreviations:  “AMAC” = anti-magnetic auto-compensating | “AN” = Arabic numeral | “cal” = caliber | “ct” = carat weight | “DES” = diamond endstone | “DR” = double roller | “DSD” = double sunk dial | “dwt” = pennyweight (20 per ounce troy) | “ED” = enamel dial | “ET” = engine turned | “FS” = fine scratch(es) | “g” = gram (31.1 per troy ounce) | “GF” = gold-filled | “GJS” = gold jewel setting(s) | “GP” = gold-plated | “GRO” = good running order | “H” = height | “HB” = hinged-back | “HB&B” = hinged-back & bezel | “HC” = hunting-case | “hl” = hairline(s) | “HS” = hairspring | “J” = jewel(s) | “K” = karat of gold quality | “KW” = key-wind | “KS” = key-set | “L” = length | “LS” = lever set | “M” = model | “MB” = motor barrel | “MFS” = micro fine scratch(es) | “mm” = millimeter | “MOP” = mother-of-pearl | “mvt” = movement | “NI” = nickel or other white plating | “NOS” = new old stock | “NR” = not running | “OF” = open face | “OH” = overhaul | “p” = page | “PG” = pink gold | “PW” = pocket watch | “QS” = quick set | “QSD” = quadruple-sunk dial | “ref” = reference | “RG” = rose gold | “RGF” = rose gold-filled | “RGP” = rolled gold plate | “RN” = Roman numeral | “RPBM” = rhodium-plated base metal | “RR” = railroad | “S” = size |“s#” = serial number | “SB” = screwed-back | “SB&B” = screwed-back & bezel | “SO” = swingout | “SS” = stem-set (pendant-set) | “SSD” = single-sunk dial | “SW” = stem wind | “TP” = Total Production | “TSD” = triple-sunk dial  | “TW” = total weight | “UFS” = ultra fine scratch(es), brushing | “W” = width | “WED” = white enamel dial | “WG” = white gold | “WI” = wind indicator | “WW” = wrist watch | “YG” = yellow gold

The Jones & Horan plain English grading system follows this general order from top to bottom:   Pristine (without defect, untouched) | Mint | Near Mint | Excellent | Fine (the average grade for most used, running watches) | Good | Fair | Poor 

With respect to wear, we also use the following terms in order:  No wear | Hardly any wear | Very little wear | Little wear | Very light wear | Light wear | Medium wear | Ample wear | Substantial wear | Worn out

These general terms are used in combination with precise descriptions of defects for further elaboration where needed:  The term, “Good,” is also used alone to indicate that the watch or its function is doing what it should be doing, as in “good running order, good repeat function and tone, good chronograph and date functions,” etc. These functions are not rated. Good running order (GRO) only means that the balance and escapement are performing in healthy fashion and without apparent defect, but does not guarantee timekeeping or warrantee future performance; unless otherwise noted, our timepieces are not serviced by us, and we do not know when they were last serviced from our sources. We do our best to indicate any potential problems or needs for repair.

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Copyright 2012, Jones & Horan Auction Team