A Truly Rare Hampden. This John C. Dueber Special is a Model 4. According to the NAWCC Data Base & the "Hampden Watch Co." Book, no J.C. Dueber Special, Model 4's were ever made!                                                                                                                   

John C. Dueber Special's were made in the Early Hunting , Model 2 & the Open Face, Model 3  configurations, (Model 2's were phased out in 1895 & supplanted by the Model 4.  Both M2's & 4's were made in 1895 with non-consecutive serial No.'s. Serial No. 1,024,042 is the last listed M2 in the "Hampden Watch Co." book, after which it shows only the M4 ). 

The only Model 4 Recorded was a HT4L-A. Which was a 2-Tone Damasked model & just a J.C. Dueber, not the "Special Adjusted" Model. 

This Watch does have the "Moon" Hands common to all J.C. Dueber's & a Double Sunk, Roman Numeral Dial which appeared on the later J.C.'s. It also has "Gold Flashing" on the Back Plates. It's hard to see in these pic's. but the Barrel Plate also has very nice Toning, much like some old Silver Coins develop over time. 

www.pocketwatchdatabase.com did recognize the Serial No. 1026963 as a John C. Dueber Special, Model 4, but had only pictures of the Model 2 (till I up-loaded a pic. of mine). 

There is no way to know how many of these were made but I'd hazard a guess that they never made more than a handful (in fact a Serial Number search did turn up 3 other examples & by the spread of the Numbers I'd say there were possibly Two Runs of 200 & 300 ea. for this Version, though the small amount of Documented Examples would lead one to think that far fewer than that were actually made, or that they have had an unusually poor survival rate).  Below is the "Comet" 10Yr. Gold Filled Hunter Case I recently acquired. This movement fit perfectly & it would be about the right era so, for now, this is the Model 4's new Case {case does need some repair to the front hinge, which is cracked}.