Last year I was asked to do a bit of research on this model watch for the seller.
A summary of my findings on his watch:
- Model name is possibly Guardsman based on doing cross references using the BB and GS crystal catalogs
- The partial case I was able to find on ebay had an engraving of 8-24-42 on the back
- You'll find a really nice picture of one of these watches in the book "Vintage Wristwatches" by Reyne Haines
- She called this watch a Gruen "Hunter"
- The watch in her book MATCHES the watch in The Gruen Watch Catalog, the relic/manuscript rescued from Gruen. This watch is owned by Charlie Cleves. I have not yet asked Charlie if Roy Ehrhardt borrowed his watch to put in his "Gruen Master Book" or if the image found in the book was actually in the original Gruen manuscript. (I'll try to find out now)
- Case serial numbers.....
- The watch I located on ebay has a Star case with serial 777725
- The watch sold last year had a Star case with serial 777752.... so these 2 cases were made likely in the same day, minutes apart
- From the recent Gruen Case Serial Number Decoding efforts, the estimated dates for these cases is 1945. This estimate is based largely on NINE caliber 405 and 406 movement serial numbers that were contained in the Star cases examined that started with prefix "7x"