


Pour Le Merite
Diameter is 38.5mm, height of case is 10mm
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1815
Diameter is 35.9mm, case height is 7.5mm
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hope it helps.
If you are this John Davis perhaps we could speak or at least trade emails. I own over three hundred Thin-o-matic watches. I keep saying that I will sell some of the 17 jewel models, I never do. I also own twenty or so of the much harder to find 25 jewel models and one beautiful maroon dial Bulova SS Ambassador 30 jewel model. I am quite certain that I have a 25 jewel that I could part with (temporarily) if it would help advance knowledge/understanding of these gems. I have dozens of the 17 jewel models that could be donated to the knowledge acquisition effort.
Many of my collection are gold and gold filled. My favorites are all stainless steel models. I have one NOS SS (Buren 1000) model that winds, runs like glass. I am sure that you know this but Hamilton included an instruction in the Thin-o-matics to wind your watch ten times now and each evening when you go to bed for longer mainspring life! Somewhat humorous as the box that the watch came in heralds a lifetime guarantee on the mainspring? I can be reached during the day at 1-800-874-7877 ext 308.
Thank you for your time.
Michael L. Knight, Chief Engineer
Bisk Education, Inc.
9417 Princess Palm Avenue Suite # 400
Tampa , Florida 33619
Telephone: 813-621-6200 Extension 308
Facsimile: 813-628-4945
[Email address suppressed for privacy]