Breitling B-2 Bezel and inner marker...do these two scales move independently?

[Rony3k]

Hi,
I noticed that as I turned the B-2 Bezel the inner scale moved at a different rate from the compass marker bezel.
Not being afraid to sound ignorant ..does this bezel do this and at what turn rate does it do this?
Aloha, Ron

[O2AFAC67]

Hi,
I noticed that as I turned the B-2 Bezel the inner scale moved at a different rate from the compass marker bezel.
Not being afraid to sound ignorant ..does this bezel do this and at what turn rate does it do this?
Aloha, RonYes, the mechanism is an "overdrive pinion" and does move at a different ratio. I have read ratio numbers ranging from 33/1 to 50/1 but I don't know what it actually is and I don't think the true ratio has been verified on the forum as far as I know. :-S Cheers,
Ron

[Rony3k]

It is so nice to have so many knowledgeable guys sharing information on this forum.... BTW Please tell me ...Where do I get the screw driver to change the links on the bracelet?... I'm just guessing but it must be a specisl one ?

Aloha, Ron

[O2AFAC67]

Where do I get the screw driver to change the links on the bracelet?... I'm just guessing but it must be a special one ?stores but the tips are very often a bit too "soft" when the small link screws are very tight. Many jewelers use "loctite" when installing the screws which is a mistake IMHO. Specialty tool or electronic shops have small screwdrivers with removable "hardened" tips which are much better for the task. You will actually need two of the proper sized screwdrivers to allow you to "back up" the bolt screw assembly on the clasp links. The removable links themselves are a "U-bolt" arrangement and only require one screwdriver for removal but definitely get the second screwdriver for the afore described reason. Use a sharp toothpick on the 4 position clasp springbar to separate the bracelet before removing or installing links. It is usually easier to do this with the bracelet removed from the watch head as well. Be sure to "bias" the bracelet with more links on the "north" side than the "south". The correct bias is evident when holding the watch by the closed bracelet clasp with the watch head hanging down. The head will be essentially parallel to the closed clasp when the bias is correct. Hope this helps. ;-) Cheers,
Ron

[kr4mula]

Yes, the mechanism is an "overdrive pinion" and does move at a different ratio. I have read ratio numbers ranging from 33/1 to 50/1 but I don't know what it actually is and I don't think the true ratio has been verified on the forum as far as I know. :-S Cheers,
Ron

Alas, before the forum crashed, there was a great picture of this mechanism posted in response to JohnR's similar question. It didn't state the ratio, but it explained the mechanics and the little bump on the case around the 10 o'clocl position..

Cheers,

Kevin

[findo-400]

Hi guys

Ask and thou shalt receive.

The pictures are below. They are of a B-1, but the mechanism is the same.

Regarding the ratio of the bezel to the outer chapter of the slide rule. A post on the old forum by Don K, stated that he had tried to see how many turns it would take, having aligned everything up, to reset the alignment of the bezel at 12o'clock and have the red 10's aligned, and the reds at the 12 o'clock postion line up again. He did not come up wth a definitive answer, however he did narrow it down to a rotaton of 37 times to get back to the position you started at. In light of this I would go for a 37:1 rotio.

Sorry about the colour of the pics but it shows you clearly enough.

The item No 5 is the little housing that you will see on the side of the case at the 10/11 o'clock position

[Rony3k]

a big BBBBBboooooooohhhahhhhhhhhhh ....you guys are the greatest...even greater than jim cramer....

Aloha,
Ron