I have a C5 Aviator and am delighted with it. After 6 weeks it has settled down to +3 sec a day gain. What would other owners recommend as a correcting strategy? I am considering setting the watch once a month, 30 sec slow, then finish the month 60 sec fast. This setting will occasionally coincide with a date adjustment. Or should I wait a little more for the movement to settle then recalibrate in an attempt to get the daily rate below +3s?
Thanks!
Sean.

First of all, +3 sec a day is very, very good, and well within COSC-specifications. All my watches have a positive deviation, my best one is the GMT II which runs < +2 sec a day. I don't have a fixed strategy, occasionally when I am in my car, which has a clock that adjusts itself via the radio, I simply pull out my crown to hack the second-hand, and push it in again when the watch is sync with the clock in my car.

kemsing01 wrote:I have a C5 Aviator and am delighted with it. After 6 weeks it has settled down to +3 sec a day gain. What would other owners recommend as a correcting strategy? I am considering setting the watch once a month, 30 sec slow, then finish the month 60 sec fast. This setting will occasionally coincide with a date adjustment. Or should I wait a little more for the movement to settle then recalibrate in an attempt to get the daily rate below +3s?
Thanks!
Sean.

I want to know if your watch was running faster with 25 sec/day after you wear it for 1 month?

I bought a c5 aviator a couple of weeks ago and mine runs at -5 seconds a day I set it every week to +15 so that it ends up being within 15 seconds of the time. This watch is much more accurate than the elgin I wore for the previous 20 years +56 seconds a day!

To ionutz.
To expand on the figures a little. I got the watch at Christmas so its been running for a month....only wound once, to get it started. It is worn every day for about 15 hours, the rest of the time its on my bedside table, crown uppermost. Out of the box it was +5 s a day and gradually reduced to +3 s at which point it has stabilised. This is better than CW guarantee so I am delighted! As an engineer I also appreciate the fantastic mechanical work visable through the back crystal!
Sean.

i have a 70's tudor that gains 10 mins a day and a 70's seamaster that loses ten over the same period, to me it's not really an issue - must get them serviced though. my c5 keeps great time though although i haven't worried it down to the second

I found out over the last few days that if I store my watch face down at night it gains 2 seconds ? With the right combination of storing (usually on its side crown up )and face down it may be possible to get it to + or - 1 anyone else noticed this?

I have a Priosa watch "Automatic 25 jeweles Incabloc" with automatic swiss Eta movement, from 70's or 80's and it runs very well, -30 or -40 sec/month. It is from Germany.

Sean,

What do you mean, “re-calibrate”? Are you considering having it adjusted? I would not touch it or have anyone else touch it either. It’s too good right now. Any adjustment now might make it worse. This is the most accurate movement I’ve heard of, outside of a real Navy Chronometer. You’re lucky to have it so close. Mine also is very consistent, just 2 seconds max per day of deviation but it runs 12 seconds fast. Soon, I’ll have regulated down a bit but I want it running for a while longer. Once a week I pull the stem to stop the movement and wait until the right time catches up. As for a routine for you, I don’t know what to tell you! I think I would just wait and re-set it just once a month.

Russ

I wish my Aviator was running +3 sec per day. Leave it alone!

Mike