"Flame-Blued Hands" Project (retrofit for Laco Pilot Baumuster B)

[Lencoth]

can anyone estimate the cost for the blued hands?

From the Quick-Reference Project Overview thread:

Blue hands (possible by Laco but with additional 30 Euros and 6 months)

[reinman60]

Calculations of the "FAT MINUTE HAND" on a 1940ies Laco B-uhr
Total length from the central "pin" to the tip: 24.2mm
Length from central "pin" to widest part of hand: 15.8mm
Width of minute hand where widest: 3.5 - 3.6mm
Witdth of Blued border outside lume approx 0.47 mm, varies

The WIDEST part of the hand is about 65% of the distance out from the central pin.

To get the size for the Laco 42mm, I would need the size of the dial, the Diameter.

Thanks Janne, and great work. These calculations will I'm sure get us as close to having hands like the original as possible. When our contact at Laco returns, I'll get the diameter of the dial so that you can scale the measurements appropriately. Just wondering how much error do you think was induced by measuring through the crystal?

From the Quick-Reference Project Overview thread:

Blue hands (possible by Laco but with additional 30 Euros and 6 months)

I'm not sure whether this price was for chemically blued or flame blued hands, I don't think that Laco was specific about this, and a hand manufacturer wasn't specified. It seems that the ideal set of hands would be flame blued hands from Universo, and we can't really know what the cost for these will be until we get a quote based on these specifications from Laco.

[Paulo]

Quantity will have a role in the price equation too.

Don't disregard the other supplier of hands for Chronoswiss besides Universo. According to Jörg Schauer, Universo is fully occupied. The Stowa FO hands had a 6 month wait.

BTW, could this drawing be of any help in the measurements (low-res scan from Martin, higher res scan available)?

[Janne]

I'll get the diameter of the dial so that you can scale the measurements appropriately. Just wondering how much error do you think was induced by measuring through the crystal?

I do not think much. The only uncertain measurement I would say is the Length, due to the crystals shape.
I measured it several times, the figures are an average. That is why I feel confident to give so accurate numbers.
I tried to use the drawing, but the hands are quite different from the "real one". Thanks anyway!
Greetings Janne

[hwilsdorf]

Now that were paying for the deposit, just wondering when will the retro-fit blued hands come into the equation?

Cheers guys!

[reinman60]

Now that were paying for the deposit, just wondering when will the retro-fit blued hands come into the equation?

We'll know a lot more when I start communicating with our contact at Laco, Peter Pfeiffer, who'll return from vacation on May 26.

[hwilsdorf]

understood mate cheers.

[reinman60]

Since Mr. Pfeiffer is still working on finalizing the dial, I haven't wanted to bother him about the blued hands.

Once the changes to the dial have been completed, I'll email him and we can get started on the blued hands project. Won't be long now.

Cheers,

John

[frank_be]

Count me in for the blued hands...
Laco can send them afterwards; My local watchmaker will remove the plain black ones with the blued ones.

Greetings,
Frank

[JCJM]

Could someone please do a PS job to see how the hands would look on the mockup?



Thanks,