Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph
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  1. #1
    Member tothelandofnod's Avatar
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    Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    Not a pilot or navigator of any air or water vessel, in fact when I'm not desk diving, the only thing I navigate are the Chicago streets in my vintage E36. But, it seems rather cool to have slide rule bezel right on your wrist. This "cool factor" has superseded my need for a GMT/24-hour watch and I started to delve into these 3 models/lines.

    As of now, the manual Speedmaster Professional looks the most attractive. The second in line would be the Navitimer with the GMT hand, but yes, at 3x to 5x more than the Speedy Pro.

    Your picks and opinions would be appreciated; moreover, please suggest any other unique pieces.

    Thank you.

  2. #2
    Member cuthbert's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    Speedmasters and Rolex Cosmographs have a fixed tachy bezel, so so slide rulers whatsoever, the Navitimer has a slide ruler that was the miniaturised version of the pilot's slide ruler that was essential for making the calculations necessary for a flight, all of them don't have anything to deal with GMT hands.



    If you are into slide rulers and you don't mind quarts Seiko makes the Flightmaster.
    .

  3. #3
    Member tothelandofnod's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    Thanks for your reply. And, sorry about the confusion, I was thinking about the Navitimer World with fourth hand, the GMT function. That idea is out, 46mm is a bit too large for my wrist. And yes, I've moved on from quartz.

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  5. #4
    Member cuthbert's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    Quote Originally Posted by tothelandofnod View Post
    Thanks for your reply. And, sorry about the confusion, I was thinking about the Navitimer World with fourth hand, the GMT function. That idea is out, 46mm is a bit too large for my wrist. And yes, I've moved on from quartz.

    So...you want a GMT watch, a chronograph or both? For the latter there aren't many choices on the market.
    .

  6. #5
    Moderator Dennis Smith's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    You are talking about some very different concepts. It seems to me you're confusing an E6-B slide rule with a tacymetric bezel. If I hear you correctly, you're asking mostly about the tachy bezel (a fixed bezel) since the Speedmaster is attractive to you. You may also look at the Sinn 303. The tachy by the way, is for measuring production rates (for example, use the chrono seconds hand to time how long it takes to go from one mile marker to the next and you'll know your movement rate in mph). There are MANY Speedmaster models with Tachys to choose from.

    A slide rule is totally different, and can do all sorts of proportional calculations using a rotating and fixed bezel. I used to do all my navigational flight planning with one. Look at the Sinn 903 for a rugged version more affordable than Breitling.
    Last edited by Dennis Smith; March 13th, 2016 at 10:39.
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  7. #6
    Member tothelandofnod's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    Again, sorry about the confusion. For some reason, I thought the said Navitimer also had a tachymeter as well on one of it's rings. The Sinn 903 looks really nice.

    Thanks.

  8. #7
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    Quote Originally Posted by cuthbert View Post
    So...you want a GMT watch, a chronograph or both? For the latter there aren't many choices on the market.
    Yes, not much out there.

    The reason I NEED a GMT watch is because I travel rather frequently from coast to coast. Not as much a commercial pilot, but 2X to 3x a month to each coast without a set schedule. At a three day meeting out in Vegas two weekends ago, I woke up at 5:00a CST (I don't like reseting my watch each time I enter a new time zone) and did the math incorrectly in a sleep induced stupor ... I thought it was 7:00a PST local time. Jumped in the shower, rushed to pack and ran down to check out, trying not to be late for my final day meeting. Once I checked out, I noticed a groups of inebriated people walking around the casino, thought it was rather late for that, then realized it was actually 3:30a PST.

    I'm rethinking this whole "cool factor" thing and looking again at GMT/24 hour watches.

    Thank you.

  9. #8
    Member Hunterfate's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    Sinn is very good on price/quality ratio. I still have my Sinn 103 that I bought in 2002 and it will stay with me and then go to my son when he makes a pilot licence

    How about Sinn 144

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  10. #9
    Member JJEXP's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

    One of the guys I fly with just bought a citizen wave, which syncs it's time automatically from the gps signal. All he does when we get somewhere is hold down one of the buttons and in 15-30 seconds it's changed the time automatically and accounted for dst if applicable. Previously, we all had at least one citizen skyhawk in addition to our more flashy pilot watches but we weren't smart enough to reset those consistently and the e6b bezel is useless. Now everyone in the flight department is drooling over the wave for just the reasons you listed: too much time zone confusion. I'd recommend checking it out.
    -Jon

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    Member JJEXP's Avatar
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    Re: Chronographs with Slide Tachymeter: Navitimer VS Speedmaster VS Cosmograph

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    Last edited by JJEXP; March 17th, 2016 at 00:35.
    -Jon

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