Black Bay is 15 seconds fast after 24 hours

[DJJon]

Funny how there are regular posts about how non-important COSC is with Rolexes, but then when a Tudor doesn't carry the COSC certification there's all sort of agreement undergoing COSC makes Rolexes better for having it.

I like the definition of expected performance that a COSC cert brings to the owner. Now we all realize that meeting COSC is not particularly hard for a watch movement manufacturer to achieve in today's world, which is not the point. The point is the OP is dissatisfied at +15 sec/day and really has no direct manufacturer's claim that his watch is failing to meet.

[Andad]

Given the low stress on most parts on a watch I doubt they need to 'break in'.

Watch movements that are tested to and pass COSC are not 'broken in' before they are sent for testing they are just taken from assembly as a movement and tested.

Watch wearing patterns vary from wearer to wearer.
I wear my Submariner Monday to Friday 7.00AM until around 4.40PM each weekday and I usually wear a different watch at the weekends.
It loses about 3 seconds during the day but holds zero gain or loss parked over the weekend at 12 down.

The only way to know YOUR watch accuracy is to check it to a website and wear it for a month in your normal pattern.
Winding it, wearing it for a day here and there or changing a 'wearing pattern' will not tell you how accurate the watch is for you.

[Runnin' Rebel]

Update:
14 seconds fast after resetting 24 hours ago with a full wind. I'll try to do daily updates and won't reset it or wind it for the next 4 days. Maybe these end links are making it faster




Sent from.....

[Nidal]

Black Bay is not COSC watch period. You are not going to get same quality you get spending 8k for 3k

[Tudor Fan]

Originally Posted by Nidal

Black Bay is not COSC watch period. You are not going to get same quality you get spending 8k for 3k

...Whatever you need to tell yourself to justify blowing that extra cash....

[Andad]

The movement in a Black Bay will easily meet COSC specs as will many other movements that are not tested.

As for the quality of 8K versus 3K.
There are watches way under 3K that meet COSC.

My Ball Fireman with ETA is about +4 to +5.
My Grovana with ETA runs about -2.
Both checked over a few weeks with my regular wearing pattern and NO winding.

If if hasn't stopped - why wind it.

[padi56]

Originally Posted by directioneng

The movement in a Black Bay will easily meet COSC specs as will many other movements that are not tested.

As for the quality of 8K versus 3K.
There are watches way under 3K that meet COSC.

My Ball Fireman with ETA is about +4 to +5.
My Grovana with ETA runs about -2.
Both checked over a few weeks with my regular wearing pattern and NO winding.

If if hasn't stopped - why wind it.

Exactly myself have regulated the Chinese made Seagull ST19 chronograph movement even out of the box when tested on timing machine was +10 fast not bad for a $60 watch.But after regulation ran well inside the COSC spec and has done so now for well over 5 years.Most all modern day movements could with careful regulation match of come very close to the now quite old COCS test.And yes some movement might need a break in period to adjust to the wearing habits etc.And you must do a proper test you cannot check a watch over a few hours or even 24 hours.It must be done with regular wearing and testing over 5 days or longer with just one time check daily with the same testing source.And even a quartz watch will do for testing source that's accurate enough.

[Andad]

An hourly update might be more accurate Mark.

[Runnin' Rebel]

^^Nidal^^ I realize this, I'm not trying to compare a ROLEX COSC to a TUDOR !!! I never said anything about that. But after 5 days and if it's over 3 mins fast then there might be an issue with this one. That's why I'm keeping an eye on it. Lots of members say their Black Bay is on the money and keeping better time then mine .

Thanks for your input EDDIE, I'll do that as well

[Andad]

Oops I forgot the mate.

[Runnin' Rebel]

Originally Posted by directioneng

Oops I forgot the mate.

I'll set my alarm and check it every hour lol

[Runnin' Rebel]

Total of 30 seconds fast after 54 hours

[TimeOnMyHands]

Clearly we should offer the (a) solution while not repeating an opinion of the challenge in meeting timekeeping (movement) expectations.

[padi56]

Originally Posted by JAGERVEGAS

Total of 30 seconds fast after 54 hours

What are your wearing habits are you wearing 24/7 what was the state of the mainspring power reserve did you fully wind watch.If you are not wearing 24/7 how is the watch resting while off wrist how are you testing your watch what is you method.

[TimeOnMyHands]

Originally Posted by padi56

What are your wearing habits are you wearing 24/7 what was the state of the mainspring power reserve did you fully wind watch.If you are not wearing 24/7 how is the watch resting while off wrist how are you testing your watch what is you method.

Did I read this in a Tudor manual somewhere.....??? Watch wearing activity must be covered somewhere....I don't recall...

[Runnin' Rebel]

Hi Peter,
It's now 40 seconds fast. I've had it on non stop since I started this thread. Sleep with it, I use my hands quite a bit when I'm not sleeping. Time.Gov is the only way I've tested it. Fully wound when I started the thread on the 27th of November @ 22:00 hrs. I sleep about 6-7 hours a night.

I always sleep with my watch(s) on
Thank you

[padi56]

Originally Posted by JAGERVEGAS

Hi Peter,
It's now 40 seconds fast. I've had it on non stop since I started this thread. Sleep with it, I use my hands quite a bit when I'm not sleeping. Time.Gov is the only way I've tested it. Fully wound when I started the thread on the 27th of November @ 22:00 hrs. I sleep about 6-7 hours a night.

I always sleep with my watch(s) on
Thank you

Myself would take it off at night there is no need to wear 24/7,try resting watch at night off wrist rest watch vertical crown up that in general slows them down.And even when worn it will do no harm to give watch a full wind say once a week but don't be in to much of a hurry to get the back off.Check time daily once only write down the daily gain then average it out over 5 days.

[shoe-bop]

Mine was running hot when I got it a couple of months ago and it never settled in. I took it to the dealership I purchased it from and had it regulated and now it's +2 sec./day.

[Runnin' Rebel]

Update: It's now 50 seconds fast after 116 hours. I'll take it off while sleeping and rest it with the crown up tonight. First time in 12 years not sleeping with my watch on.

Minor issue, if it needs regulation I purchased it from one of the grey dealers here with the card not filled out it does have a dealer stamp from Israel. And I don't want to take it to the AD here in Summerlin cause the watch maker is a POS. It's still under warranty of course.

[lig]

I've actually never timed any of my mechanical watches. They get rotated so often that unless it's grossly off I would never know...

[CSM]

brother, you should take your watch to your AD and have it adjusted by rolex. i have a BB and it's +/- + 3sec/day. but i have a jlc that was almost 1 minut slow/day when i bought it. I had it adjusted under warranty. it is not a problem from tudor itself, it can happen with any brand. even the better ones.

regards

[Runnin' Rebel]

Alright, gained another 10 seconds after resting vertical crown up while sleeping, 7 hours. So after 6 days it's exactly 60 seconds fast now. I haven't wound it or set it.

I'm not in a hurry to send it in so I'll give it a month or so to settle down. By then it shouldn't be so excitable to be on my wrist.

[padi56]

Originally Posted by JAGERVEGAS

Alright, gained another 10 seconds after resting vertical crown up while sleeping, 7 hours. So after 6 days it's exactly 60 seconds fast now. I haven't wound it or set it.

I'm not in a hurry to send it in so I'll give it a month or so to settle down. By then it shouldn't be so excitable to be on my wrist.

So your watch is still 99.990% accurate at the moment myself believe you are reading far too much into a few seconds out of 86400 in a day.And instead of enjoying your watch you are worrying over a few seconds.Life too short to worry over such little things like few seconds out of 86400 in a day.Leave it you have plenty of time to have it regulated,its not something major.And most any watchmaker could regulate it, but even at +10 seconds its still a very accurate watch, consistency is the most important.

[Gary Busey]

get it regulated. mine was 10 secs sllow a day. now its 0, and been like that for a while after regulation

[mike]

Originally Posted by Gary Busey

get it regulated. mine was 10 secs sllow a day. now its 0, and been like that for a while after regulation

That's all it is. It just needs regulated.

There was an interesting article in Watchtime a couple months ago about the Black Bay they tested. The watch ran +13 sec. It was regulated fast.

Mine runs about as spot on as can be and has done so right out of the box.

A simple regulation sounds like all the watch needs.

[affalterbach]

Sounds like an AP. At least you'll never be late.

[jctrolex]

My BB gained minutes over a 24 hour period. My AD thought it was magnetized but the problem did not get rectified after he de-magnetized it. They then regulated it and it ran fine afterwards. I don't know if it runs within COSC but it seems to be accurate enough every time I checked it against my cell phone. I wouldn't sweat it too much just send it back to the AD and get it regulated. The BB is a great watch at any level, just enjoy it!

[zama]

My old Tag Heuer Chrono (manual wind) used to gain about 5 minutes ever 3 days, my solution, wind it back every few days, I appreciate the role of a watch is to keep accurate time but my life is not judged by seconds. A watch that runs fast is always better than slow, reduces the chances of being late for a meeting. I guess if it is critical then regulation is the key. I wear a watch more for aesthetics, given my iphone is with me almost all day and seems to know the time and date accurately.

Personally I am more concerned about the quality of the Lume so I can see the time at night!