Altimeters are affected by atmospheric pressure. You need to recalibrate it any time the barometer moves much, etc. 100 feet is not much for an altimeter to be off. You need to have a solid place of known elevation for calibration within relatively short range of where you want the altimeter to read properly. You don't just set-and-forget an altimeter.
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:-)

Do you know of a certified elevation near your house. I use to have a bike computer with altimeter built in. I found the "official elevation" of my driveway and would reset the altimeter each ride if it was off.
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I use the property report for my house that lists elevation as a close enough guide. Seems like my old casio ABC is just a little more consistent than the Tissot, but I'm in South florida, so there arent any real changes in elevation anyway unless I'm driving on an overpass :-)
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I bet barometric pressure must change a lot in S. FL
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yes, the official elevation marker for my subdivision is about 1 block from me.
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Just curious, what do you all do with all of this information?
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If you set the altimeter, you can calculate current elevation or feet climbed within a timeframe.
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If you are just doing a bike ride or similar day activity, you don't need to set it. Just note the start "elevation" and all the other waypoints. The errors will cancel. If, however, you want to measure vs something like a topographic map, you need to set so that you have reasonable confidence in your mapping to the set reference that is the map.
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finally took a couple snaps of the new whip:

I never wore my black navitimer. It sat in its case for over 6 months without being worn....so i traded it for this white one. I've already begun wearing it. It wears much larger than the black face. obviously.


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I just bought this one because it was different. That, and I'm addicted to watches.:-)

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^^^ loving the band, also loving the size/finish of the numerals!!!
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I just bought my first luxury watch. It's an Omega Seamaster, I can't wait to get it!


:-)


Chris.....
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For some reason I just started getting into watches. I can't throw any serious cash down and if I could I probably wouldn't anyways. I just bought a solid black Invicta Sea Spider Special Edition and a black and gold Invicta Corduba Collection. I want to get a different brand next. Going for a solid gold or solid silver (in color not material) next.
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Not to mention the crown at 12:00.

What do those two small hands do and do they jump back?

27 jewel automatic movement too!
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S15, love the Navi in white, I'll have to try to get some better pics of mine, I have the blue face with brown leather strap.

Jsnake, Invictas are where watch collecting started for me, welcome to the top of yet another slippery slope...
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Thank you and I am doomed! Bought 2 watches in 2 months. Just got that second one yesterday actually.

What brands should I look at next? I want to stay in the $200 or $300 range and I really want a skeleton watch. There are many on the internet that look great but reading reviews the quality seems to stink. I would love a Breitling but it is out of my price range.
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you have a blue faced navi world? TRADE PLEASE!!!
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There are several Chinese made skeleton watches that are nice for the money.
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Look at the Stuhrling. I like mine.
Swiss made I think...
http://www.amazon.com/Stuhrling-Orig.../dp/B001GPOMU2
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Thanks for the link. Just what I was looking for. I might actually grab this exact one if my wife doesn't kill me first.
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