25 years following, recently more patterns have been found. A similar spurt happened a few years ago. Most all have come from different sellers and states. A few were found browsing but most were in wild at auction. One would think not many variances would be found in one grade of watch, my odds of different patterns among findings has been very good. With few exceptions most all have been different.
The following are from my own observations. Each entry in following table represents a different pattern.
From the first runs Hunting 6026144 +7 -6151 +3 -6154 +119 -6273 +104 -6377 +9 -6386 +16 -6402 +39 -6441 +42 -6483 +123 -6606 +38 -6644 +103 -6747 +192 -6939
From these first 2 runs and serials so far identified = roughly 78-79 avg between patterns
From later runs Hunting 7001006 +107 -1113 +88 -1201 +54 -1255 Open +1630-7002885 (7001857 HC exact same pattern, other pairs seen in these later runs) added 7.23.24