Here are the 17-jewel Columbus King watches listed in our data base (which now includes John's watch). You can draw your own conclusions as to the size of the runs:
319,094 - OF
363,639 - HC
364,070 - OF
364,100 - OF
366,931 - OF
367,083 - OF
367,150 - OF
367,446 - HC
367,460 - HC
367,498 - HC
369,116 - OF
369,119 - OF
369,191 - OF
370,864 - OF
371,473 - OF
371,564 - HC
371,573 - HC
371,900 - OF - Last 2 Dgts Ukn
[colour=blue]371933 - OF - Railway King Grade[/colour]
[colour=blue]371984 - OF[/colour]
372,176 - Type not reported
372,267 - Type not reported
Tom, is your watch listed here? If not, would you please share the serial number and details?
The breakdown of the 500,000 series watches, which includes the higher jeweled Columbus Kings, appears on page 361 of the June 2003 Bulletin.
[colour=blue]Edited to add 371933 Railway King & 371984 Columbus King[/colour]
Thanks,