Recent content by Clint Geller

  1. Clint Geller

    E. Howard dial ... 4 feet?

    Hi Fred, I was on vacation and just saw your post. A double sunk dial would definitely have been made with a split plate movement in mind. The dials typically were made with four feet, then one was clipped off, depending on whether it was fitted to a hunting or open face movement.
  2. Clint Geller

    Position adjustment--- what is it and how do you do it?

    For those interested, the Chapter 174 (Pocket Horology) website, , shows a fascinating set of chronometer balances all with middle temperature corrections. I undersatand that Hartnip's balance, an example of which is shown, is one of the few middle temperature corrections...
  3. Clint Geller

    Position adjustment--- what is it and how do you do it?

    Tom, You are correct in that "unmarked" Howard watches were adjusted to isochronism, as were all Howard's other movements, and watches engraved "Heat & Cold" were not adjusted to positions. In the 1860's, Howard charged an additional $25 for a movement with positional adjustments! How many...
  4. Clint Geller

    Position adjustment--- what is it and how do you do it?

    Hello, Sadly, physics dictates that a watch with a bimetallic balance cannot be "accurate" at more than two temperatures unless it incorporates some exotic middle temperature correction mechanism, few of which actually worked, and which are only found, as far as I know, on marine chronometers...
  5. Clint Geller

    A very expensive Waltham

    To state the obvious, ownership and expertise have nothing necessarily to do with one another.
  6. Clint Geller

    E.Howard Series VII

    It is worth noting that as evidence of the trend I cited previously, the J Size model introduced in 1891 (often referred to as the "Series X"), as well as all the N and L Size split plate movements introduced in 1894 and 1895 were exclusively nickel. While the majority of J Size movements were...
  7. Clint Geller

    E.Howard Series VII

    Hi Jerry, In the period in which your watch was made, E. Howard & Co. was using a numerical grading system, running nominally from one to ten, although there base grade was "2," not "1." This grading sytem, introduced in 1884, is explained in Tables II-13b and II-16 of my book. A 15 jewel...
  8. Clint Geller

    The Jura Watch Identify

    [whisper uid=6289] Enter private whisper here [/whisper] Mr. Evans. are you the same Don Evans from San Diego that I used to know? I infer from your handle that you are or were a Chief Petty Officer on a submarine. Is that correct? I work as a civilian contractor employee for the US Naval...
  9. Clint Geller

    neat watch ephemera

    If there had been Mart rooms in the 19th century.... :thumb:
  10. Clint Geller

    E. Howard & Co. series IV sales papers

    Hi Fred, I'm afraid I don't have movement S# information. But then again, even most wealthy people wouldn't have owned more than one Howard Series IV. Clint
  11. Clint Geller

    E. Howard & Co. series IV sales papers

    Fred, It's a small world! Take a look at Figure 46 of my article, "E. Howard & Company Watch Dials," on page 412 of the August 1993 BULLETIN. It shows a personalized Howard Series IV (Model 1871) dial inscribed with the letters "WILLIAM GERRY" in place of the hour numerals! At the time the...
  12. Clint Geller

    Gold Medal Waltham 1876 Centennial Exhibition in Philadelphia for the time trial

    Re: Gold Medal Waltham 1876 Centennial Exhibition in Philadelphia for the time t The front cover of the 2002 Seminar Publication, "Boston: Cradle of Industrial Watchmaking," NAWCC BULLETIN Special Order Supplement #5, published in December, 2005, features movement and dial pictures of S#...
  13. Clint Geller

    WW2 German Timer, U-Jagd

    A little bit of Internet research I had time to do indicates that ASDIC, or radar was developed during WWI. Thus by WWII, I imagine it was pretty widespread. That being the case, it is unlikely that anyone would have used explosions to locate submarines during WWII, if ever.
  14. Clint Geller

    WW2 German Timer, U-Jagd

    Kent, OK, but the Bismark was Germany's newest and greatest ship, sunk on her maiden voyage. If any ships in the German navy were going to have radar, they would have been the Bismark and her sister ship, the Tirpitz. Conversely, the US battleships sunk at Pearl Harbor had radar gunnery control...
  15. Clint Geller

    WW2 German Timer, U-Jagd

    Hi Kent, My understanding is that depth charges were not simply "dropped," but were flung into the air (whether mechanically or chemically, I'm not sure), specifically to get them away from the stern of the ship. I had assumed that this explained the first six seconds of the t(d) expression I...

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Weekly News 7/7/19 by Tom McIntyre