Accuracy during flight

[Giovannibravo]

Today, I flew about 5 hours. Lost 5 minutes on my 124060. Is it normal to lose that much time to the variation in air pressure during a flight?

[Andad]

No.

[georgew]

A follow up question would be: what has been (is) the accuracy during a normal (non-travel) day?

[SS Oyster]

The mainspring (if properly wound) does not count on gravity to keep good time. Flying at less than 36,000 feet provides nearly the same gravitational force anyway, so I don’t see how flying has anything to do with your watch’s ability to keep accurate time.


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[jed11]

Did you change time zones?


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[Krash]

Definitely not normal.


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[monsieur_z]

Were you traveling near the speed of light?

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[JMGoodnight369]

Oh no not only do we have to worry about low amplitude, but now high altitude lolololol

[justdate]

Fly fast enough and you certainly would!

https://en.m.wikipedia.org/wiki/Hafe...ing_experiment

[prw]

Did you go through magnetometer in security? My Rolex has no issues with one but my PP goes crazy even when I use a particular laptop.

[puma1552]

Shouldn't matter, cabin is pressurized.

[Stan Cooper]

Originally Posted by puma1552

Shouldn't matter, cabin is pressurized.

Right.

Airliners typically maintain a cabin pressure of around 8,000 feet MSL flying at the airplane's service ceiling (usually around 40,000 feet MSL). I fly an unpressurized single engine airplane cross-country at altitudes up to 10,000 feet without supplemental oxygen and my watches (usually a GMT II) maintain the same accuracy as when at sea level.

So no, it's not normal to lose time due to flying.

[East of Eden]

Another 32xx story.

[B2 Stealth]

I fly over 130 hours a month as a commercial airline pilot. My BLRO is spot-on. Just like on the ground.

[TheVTCGuy]

Originally Posted by B2 Stealth

I fly over 130 hours a month as a commercial airline pilot. My BLRO is spot-on. Just like on the ground.

Boy your arms must get tired!





Yeah… OK, I’m a Dorklehead

[AF_Rob]

Just a thought... When traveling and changing time, I have on occasion accidentally set the watch either 1 hour or 5 minutes fast or slow not paying attention.

[WatchGuy1966]

Everyday, without fail, I say to myself "I thought I'd heard it all on here before"

[Giovannibravo]

Could be the case? Will monitor it over the next few days. Hopefully not a 32XX issues.

[996marty]

Hopefully it’s just a one off but definitely shouldn’t be doing that

[Guppydriver]

Originally Posted by B2 Stealth

I fly over 130 hours a month as a commercial airline pilot. My BLRO is spot-on. Just like on the ground.

The better question is how are you immune to FAR 117 flight and duty limitations? (not "calling you out", just generally curious)

I could see credit 130 with premium trips or overrides, but not actual flight hours.

If so, you're a madman! I'm done at 80 hours, I leave the airport like Fred Flinstone left the quarry.

[Rolexken]

Whatever the cause it won’t be the altitude or the flight.

[padi56]

Originally Posted by Rolexken

Whatever the cause it won’t be the altitude or the flight.

Most probably a owner error as flying in a airplane in will not effect a watch.

[chris242]

Originally Posted by AF_Rob

Just a thought... When traveling and changing time, I have on occasion accidentally set the watch either 1 hour or 5 minutes fast or slow not paying attention.

This has also happened to me. Most likely the case here


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[Devildog]

Originally Posted by East of Eden

Another 32xx story.

Yep

[Devildog]

Originally Posted by Giovannibravo

Could be the case? Will monitor it over the next few days. Hopefully not a 32XX issues.

Did you manually adjust the time?

Even the worst 32xx issues aren't 1 minute per hour (without being aware prior)

[Dirt]

I have lost a few seconds on a long haul flight a few times when I used to travel for work.
A neat 5 minutes over a relatively short period of time sort of sounds like operator error at some point
Did you change the time at some point prior?

[Tseg]

Were you flying near Bermuda, by chance?

[Old Expat Beast]

Originally Posted by AF_Rob

Just a thought... When traveling and changing time, I have on occasion accidentally set the watch either 1 hour or 5 minutes fast or slow not paying attention.

This

Originally Posted by East of Eden

Another 32xx story.

Or maybe this.

Back in the late 1960s when Seiko movements were spanking the Swiss to the extent that Omega were putting up quartz against Japanese mechanicals, Seiko would fly their movements to Swiss chronometer competitions as close to the Equator as possible to avoid Polar magnetic fields.

[Jack T]

It would have to be a fast plane, a very, very fast plane…

[MrMercedes]

A big NO!