I've been researching this one for a while and 1938 Ambassador is the best I can come up with. I'm hoping you all agree with my logic. The movement is the 15 jewel AN10 (4 adjustments) serial number 402013 and a crescent moon date symbol. The case is the hinged type matching others identified as 1934 and later Ambassadors in the database. However, the case serial numbers for those in the database are as follows: 1934 - 408674 - 1935 - 5050387 - 1935 - 5061224. This one's case has serial number 335827, which looks to be earlier than those above. With the crescent moon symbol and the earlier serial number I thought it may be 1928. The problem is that the late 1920's Ambassadors don't look anything like this. This style start showing up around 1934, so that's where the 1938 assumption comes from.
Strange, just checked all 1933 watches in DB and about half of them were seven-digit case s/n's, including one of yours, Mark. The case s/n's with six digits seem to be from the case backs exterior, but most early s/n's are case interior numbers, am I right?
EDIT: Looking through the DB at 1932 watches and several have given six-digit case s/n's, and inside casback pics show seven digit case s/n. Lots of stated case s/n's are seven-digits too. Got to be one or the other, but which is correct? I'm going with Internal case s/n for the early models, as most in DB seem to be this.
Have looked through DB and it looks like the s/n for the date was from the inside of the case back until 1934, possibly for part of 1935. Some watches in DB have wrongly used the outer caseback s/n to date their watches before 1935, and in my opinion the subject watch has been wrongly dated. I don't know if I am going over an old debate, so forgive me if I am.
We see an influx of these Cases beginning around 1933.
What is meant by 'these Cases' is the earlier Cases stamped 'AMERICAN STANDARD' inside the Caseback begin to disappear and the outer stamp with the Shield (the American Standard trademark) appear.
Member William Smith has one stamped both inside and outside the Caseback - the first I have seen personally.
In reply to We see an influx of these by FifthAvenueRes…
So have a lot of the others in the DB, Mark. I looked at pics and info on watches from 1931-1935, and in those with pics of case back and inside, many had two sets of numbers, case back invariably have six digits, and inside the case back seven digits. I think the seven digit numbers are the correct ones for dating the watch with, as I said earlier. Try checking your own watches pre-1935, or look in the DB, as some show a six digits on the case back pic but have a seven digit number in the info box.
Best PM the owner, as there are no pics.
I'm pretty sure of watches in the 1932-35 timeline having 7 digit case SN's, unless mistakenly given from the outside nos, and some ladys models having only six.
Also, some watches with nos. inside and out.
Will PM cuad now.
In reply to Best PM the owner, as there by bobbee
Hello all, I apologize for not responding sooner, but I've been away from the forum and have missed all the mesages referring to this watch.
To answer the questions from Bobbee and Will, yes I still have the watch and will check for another set of numbers in the case, as well as any marking referring to gold plating content. Sadly, the last time I saw the watch, I dropped it and the crystal is no broken.
I may have taken additional pics of the watch since posting here. If I did I will add them.