Below you will find the different versions of the Appleton Tracy & Co. grade. The ATC was made from the beginning to the end of Model 92 production so it is found in all movement variations. There are runs of 21 Jewel ATCs listed in the Gray Book but to date, none have been reported. What does appear in these runs as well as some other ATC runs are Grade 845 movements which are 21 jewel watches.
Version 1 (ATCO-1) Found in the 7005001-7018973 range
This version is identified by the serial number being in Position 1, directly under the grade marking. The movement to the right, s/n 7005977 is from the first run of ATCs, a run of open face movements. The table below shows the runs where Version 1 ATCs are found. The third run, 7018601-973 is listed in the Gray Book as a run of Specials. Various grades are found in this run and the Handwritten Records indicate some ATCs were made but none have been reported to date. On the earliest ATCs, the words Appleton Tracy & Company are marked in a script although a few from the first 2 runs have been reported in the block style which becomes the norm for the rest of production.
The first two runs of ATCs also contain Riverside movements. The Handwritten Records tell us that the first 10 movements from both of the first two runs are Vanguards but none have been recorded to date. The table below reflects the breakdown according to the Handwritten Records.
The table below shows the movements reported from the first two runs of Appleton Tracy & Co. movements.
Version 2 (ATC2) Found in the 7026001-8858500 range.
Version 2 is identified by the serial number next to the barrel bridge (SNP2 Serial Number Position 2) and 2 screws in the barrel bridge.
Version 3 (ATC3) Found in the 10029001- 10501500 range.
This version is identified by the serial number being in SNP2 and 3 Barrel Bridge Screws Version 4 (ATC4) Found in the 10525801- 11060500 range.
Version 4 is identified by the serial number being in SNP3, the Patented Waltham Stud and the lack of the "Safety Barrel" marking. It is in this range that we begin to find areas that need sorting out with regards to the Appleton Tracy & Co. grade. The Gray Book lists run 10575001-10575500 as a run of ATC movements but along with ATC movements being reported from this run there have also been 21 Jewel Vanguard "Plugged" movements reported. Waltham sometimes altered movements and then milled out the original jewel count and inserted a "plug" which had been stamped with the new jewel count. Waltham more typicly performed this modification on other Vanguards, altering movements initially marked 19 & 21 Jewels to 23 Jewels and 23 Jewel movements to 21. The table below lists the movements reported from this run.
Run 10575001-10575500 Gray Book=ATC
These are not the earliest reported Vanguard plugs but the current research would suggest that this is the only time movements other than Vanguards were plugged.
Click here for Plugged Vanguards
Version 5 (ATC5) Found in the 11071501-12578000 range.
Version 5 is identified by a change in the orientation of the screws holding down the balance jewels. It is in this version that the first 845s begin to appear, the earliest to date is s/n 12019751. As stated previously, there are listings in the Gray Book suggesting that Waltham made 21 Jewel Appleton Tracy & Co. movements. Run 12020301-12020400 is listed as being a run of 21 Jewel ATC movements while 12002001-300 and12577601-8000 are listed as runs of 17-21 Jewel ATC movements. There has only been one movement reported from the 12020301 run and that is s/n 12020391 an Appleton Tracy movement. There have been 3 movements reported in the 12002001 run, an ATC Premier (s/n 12002037) and 2 ATCs, 12002096 and 12002259, all 3 being 17 Jewel movements. Early 845s have also been found in Crescent Street runs.
Movements reported from run 12577601-8000. Gray Book= A.T.& Co. 17-21 Jewels
Appleton Tracy & Co runs with where 845s have been reported
*Includes ATC Premiers
Version 6 (ATC6) Found in the 14125126-16152000 range.
Version 6 is identified by a change in position of the case screws. The positions have been termed by the location of the case screw in the barrel bridge. Up to this version it is found between the winding wheels (BET). Waltham moves the barrel bridge case screw to the left, near the edge of the bridge (EDGE).
Version 7 (ATC7) Found in the 16160501-16152000 range.
Version 7 movements are found with the 08 Patent Regulator. The photo to the right shows the 08 Regulator on a Plugged Balance Cock. To date there has only been one ATC found with a plugged balance cock. The photo below and to the right shows the 08 Regulator on a solid balance cock.
Version 8 (ATC8) Found in the 18065000-18137000 range.
The final change to the ATC movement is the addition of the Groove on the outer edge of the movement next to the balance wheel. As in the photo to the right, some of these movements were marked "5 Positions"
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