LACO Pilot Baumuster B Special Edition (Forum Project Wach) - Discussion

[hwilsdorf]

Thanks for the side by side view ErikH. It seems that the stem is long enough and the position of the triangle is fine. We just need to modify the arrow head ever so slightly larger (to be able to move the tip slightly higher than both '55' and '5'. Whether or not it is obvious in real life is another thing. Laco might have started a template already?

Thanks Bruce, looks like 9mm would be a little too big? I measured my Archimede 42mm and it has an 8.5mm diamond crown. I think with an onion crown, 7.5mm to 8mm would be suffice proportionally.

Cheers guys!

[Janne]

OK, Ladies and Gentlemen, I did some measurements and maths:
The Original's crown is 10,0 mm in diameter
10 divided by 55 = 0,18181
7,64 divided by 42 = 0,1819

Conclusion: The crown should be 7,6-7,7 mm in diameter You guessed spot on, Bruce and Whilsdorf!

The Original's crown stands out 7,0 mm from the case, (case to end of crown) INCLUDING STEM
7,0 divided by 55 = 0,12727
5,35 divided by 42 = 0,12738

The crown should protrude approx 5,35 mm, case to end of crown, if the majority prefers a stem + crown.

The Originals crown is 5,5 mm thick
5,5 / 55 = 0,1
4,2 / 42 = 0,1

The crown should be about 4,2 mm thick.

So, the crown on it's own should have this approx. size:
7,65mm X 4,2mm


Now, as the designers among you realise, this will give the crown a correct profile, but will butt it up to the watch case, so the skin on the hand will be ok.

Wife calls, time to go to cinema and see "Ironman"!
Greetings Janne

PS. Back home. The movie was good! I can recommend it!

[Paulo]

Just a word of caution about the position of the arrow.

As the watch has less diameter the proportions of the curvature are modified. All elements move along their radius and, therefore, the numbers should look a little more raised than in the original watch.
I hope this makes sense to someone.

[TIMEangel]

Have we settle on "White circle around dial" and FL 23883 engraving on the side" features? sorry memory is degrading.

regards
TA

[Crusader]

Have we settle on "White circle around dial" and FL 23883 engraving on the side" features? sorry memory is degrading.

regards
TA

This thread was made for you.

[Crusader]

And meanwhile, in the real world and the main Pil-Mil forum, a picture of the 1942 drawing of the B-Uhr Baumuster B has been posted:

Document: RLM FL 23883 (B-Uhr) drawing of December 1942

Further discussion here: WW II -B-watch draft by Wempe

[hwilsdorf]

Hi Janne,

Did you mean hwilsdorf? Whilsdorf could be someone else who loves to whistle.

Iron Man? Good action movie but if I owned 55mm B-uhr's, i would rather stay home and take measurements instead!

Thanks for the measurements I think Laco would be thinking twice about the agreement with a bunch of watch freaks and smarties not willing to pay >Euro 600 yet requires a totally new watch accurate down to the millimeter!

Jason

OK, Ladies and Gentlemen, I did some measurements and maths:
The Original's crown is 10,0 mm in diameter
10 divided by 55 = 0,18181
7,64 divided by 42 = 0,1819

The crown should be 7,6-7,7 mm in diameter You guessed spot on, Bruce and Whilsdorf!

The Original's crown stands out 7,0 mm from the case, (case to end of crown)
7,0 divided by 55 = 0,12727
5,35 divided by 42 = 0,12738

The crown should protrude approx 5,35 mm, case to end of crown

Wife calls, time to go to cinema and see "Ironman"!
Greetings Janne

PS. Back home. The movie was good! I can recommend it!

[Janne]

I beg for your forgiveness, Hwilsdorf !
Yes, Laco will now understand that we are not to be messed with!
I really hope they use our communal knowledge and make some changes to the other B-style watches they produce, to get more accurancy and hopefully sell more!!!
I calculated down to a hundred of a millimetre for our information, because we are WISis!
In fact, considering the majority request is NO STEM, that info is WRONG
The size of the crown should be approx 7,6 x 4,2 mm !
I have corrected the above post!

Considering that Tech drawing (thanks Chrusader) I realise now that we should reguest a very thin outer circle!

Greetings All!

[Janne]

Paulo! Erics excellent photos show what I mean with the Arrow. Hopefully Laco has not finalised the dial yet.
The outer circle seems to give the dial a "definition".


Pics stolen from Erik_H

[BRUCE]

Very precise calculations there Janne. I would think that would be great information for Laco in their Crown sourcing.

On the Dial. I hope any changes to it take into account Paulo's caution. I think, correct me here Paulo if I am mis-stating your thoughts, that Paulo is bringing up that since the dial on our 42mm is 42/55 in overall size, then the arrow head for example would not be the same size in the 42mm as in the 55mm, or the exact absolute distance from surrounding points. My take on this arrow size and placement would be we need to be careful making changes based on measurments, and go more on the effect on the human eye. Again, just MHO. Not trying to be negative, just cautious.

Maybe the safest thing would be to post a comparison before we make any changes to the dial just, to make sure it looks as good or better than the current one...just a thought. The dial looks pretty good to me as it is, yet I can see what you are talking about. When I think about the moves required to improve, I start creating problems where there were none before. I'd hate to have a surprise when the built dials come down the line. :oops: