How many turns does it take to fully wind a Tudor Black Bay 58?

[cronos]

I wound my BB 58 30 times and put it back in its case and found that it had stopped after 34 hours and 20 minutes so I wound it 80 times and it lasted 60 hours and 40 minutes. How many times do I have to wind it to get 70 hours of power reserve?

[padi56]

Depends on how you are winding they need at least 70 full crown turns clockwise only, as they only wind on the forward wind. And you cannot overwind it as when mainspring is fully wound it just slips in the spring-barrel.

[cronos]

Originally Posted by padi56

Depends on how you are winding they need at least 70 full crown turns clockwise only, as they only wind on the forward wind. And you cannot overwind it as when mainspring is fully wound it just slips in the spring-barrel.

Thanks you.Maybe I am not turning it all the way round.

[Brny11]

It get rough to wind after 30 or so in my experience so I do not ever go for full power. You able to wind yours fully?

[kieselguhr]

The Tudor North Flag contains the MT5621 which is what all Tudor non chronograph in house movements are based on. The power reserve indicator will reach max at ~ 35 - 42 full winds. Lasts close to the advertised 70 hours when left idle. More like 64-66 hours.

70 full winds as Peter suggested would definitely give the mainspring max tensile strength and any excess will just slip.

1 full wind would be 1 full rotation of the crown. On a Tudor, it is easier if the crown has an embossed shield vs the rose as you can tell it’s a full rotation as you wind when the shield returns to its starting orientation.

[supernova]

For testing power reserve on mine, I just did 120 turns so that it definitely is fully wound since it can’t be over wound. Lasted about 71 hours then.


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[Me4u2night]

No idea but I wind it about 15-20 times, put it on my wrist and it’s good for the 3 days I wear it before rotating out to a different watch.

[padi56]

Originally Posted by Me4u2night

No idea but I wind it about 15-20 times, put it on my wrist and it’s good for the 3 days I wear it before rotating out to a different watch.

Well like all automatic watches just wearing does not always wind the watch, its wrist activity that winds the watch. But even if worn regular at say a less active job, no harm whatsoever to give a full manual wind say once a week or so, just to keep mainspring at peak power-reserve.

[Krash]

I don’t think I ever get 48 hours of power reserve from my Submariner. I could wear it 5 days straight, swap it out for a different watch (manual wound Speedmaster), and then at about 30 to 35 hours later, it’s out of gas.

A couple of factors: 1) I basically sit in an office all day and don’t do anything physical during the day. 2) I take my watch off at night. So it’s idle every night from 10:00 PM to about 8:00 AM in the morning. 3) When I do workout, which I do on a daily basis, I wear my Apple Watch instead. So that’s usually another hour or so of inactivity.

I’m guessing that my Submariner is never fully wound when I decide to swap it out for a couple days or so. I’m not really concerned about it.


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[OG1982]

Originally Posted by cronos

I wound my BB 58 30 times and put it back in its case and found that it had stopped after 34 hours and 20 minutes so I wound it 80 times and it lasted 60 hours and 40 minutes. How many times do I have to wind it to get 70 hours of power reserve?

89 and 1 half turn should do it

[MikeyV]

40.

[cronos]

Ok,so I wound it 70 full turns and it ran for 69 hrs and 10 minutes. I guess that is close enough for now. Just wound it 30 times and put it back on my wrist. Thanks for the help!

[harizanoff]

I had the same issue. After I got my Tudor BB ref# M79230R-0011, I decided to give a power reserve test. I turned the crown 30 times as suggested on the website but the watch died after exactly 36 hours and 20 minutes. Now, I turned the crown 60 times, let's see how long until it dies.

Btw, has anybody experienced clicking action when turning the crown clockwise? Generally, the action is smooth but I still feel these fine clicks. Is this normal with this kind of movement?

[Plant]

If you want to fully wind most autos just keep cranking them for a minute or 2 dont worry about counting. You cant overwind like a manual wind (and for a manual wind youll feel when to stop). For some autos you can hear a diffence when its fully wound if you listen closely because you can hear the thing that prevents you from overwinding.

For me, when I wake up Iike to flick the watch a few times to feel the rotor spin while charging it.

[White Collar Boy]

Originally Posted by harizanoff

Btw, has anybody experienced clicking action when turning the crown clockwise? Generally, the action is smooth but I still feel these fine clicks. Is this normal with this kind of movement?

Hi and welcome to the forum. I think the clicking you are describing is a protective measure when the mainspring is fully charged: a kind of feedback to let you know to stop winding. It goes back to being smooth when it could use a little charging. I’ve only noticed it with this movement. So nothing to worry about.