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Forgive my ignorance but surely that E Howard movement cannot be a Model 1899 the plate layout is totally different?
To help with this, here is the movements illustration from Waltham's 1936 material catalog. It shows three different plate profiles used for the 1899 model. In spite of the different appearance, they are all mechanically the same, with the same gearing and center distances. The illustration and text also show how the same plate profiles are used for the subsequent 1908 model, with only minor mechanical differences.The brief answer to that is - don't rely on plate layout alone for identifying / classifying models. Within the 1899/1908 family, a number of different layouts exist - ...
Yes, wrong assumption! I have a Vanguard here 16145867 listed as an 1899 with same 1908 style clicker as yours.I think your second paragraph is right, Mark. Here's another of my recently "rediscovered" 1899s with a 1908 type clicker and I'm sure its original.
Photos: A fifth plate pattern of model 1908 17J a.k.a. grade "No 1617". This is https://pocketwatchdatabase.com/search/result/waltham/32046519 and marked 5 adjustments so I assume it's a fairly decent spec despite the absence of damaskeening.Thanks, topspin, for bringing up the 4th plate pattern. In the United States it only appears on the Waltham-Howards and the Equity model but, of course, you see them more often than we do with the various export pieces, like the Traveller. The early Waltham-Howard, though, is the only 17-jewel version and it is similar to the Royal grade in quality.