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Hi everyone, I have a Swiss emperor chronograph with a landeron 248 movement.  The backplate reads 248 O W. The problem is that the seconds hand it came with was the wrong size and kept falling off when the fly back button was pressed. I don't know the size of the tube of a replacement seconds hand or where to acquire one, any help much appreciated.

Peter.

 

 

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Hi, my first post would not allow me to upload pictures. I have tried to replace the seconds hand with some spare seconds hands I had but they were for conventional watches and the tubes were to small. I know that this watch takes a larger tube but I don't know the size it takes.

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Unless the arbour sticks out enough so you can catch it in vernier, hands and dial plate are to be pulled out to gain access to it.

Clockboy is a knowlegable horologist, once he sees the picture you later  posted, he will give a more suitable advice.

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I think the Landeron 248 has the following sizes:

Hour hand 1.85

Minute hand 1.30

Center second Hand 0.25

So if you want to try one from a different Landeron movement it should be the Landeron 51

 

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Thanks for the answers, trying to find a seller that deals with these specific parts is proving to be problematic. A seller on eBay is selling a complete set of landeron 248 hands but the bid's are starting to go high and I only want the centre seconds hand. 0.25 is a good start so I will concentrate on that. I have experience in removing hands and dials as I re-illuminate watches but I haven't tackled a chronograph, so I will leave that option alone. I didn't properly introduce myself on my first post so my name is Peter and I am from Liverpool, England and have been collecting watches for about 5 years. I also repair and refurbish when possible. I have a certain leaning towards pre 70's Omega's, but I have some others which I like such as Zenith and Ollivant and Botsford. Many thanks for your input and I hope to help others on this forum especially on the subject of Omega's or re-illuminating dials and hands if I can.

Kind regards.

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Sorry I did not have access to the pictures.I presume the hand you are referring to is the hand that sits in the middle of the dial. I call it the fly back hand because when used it re-sets back to the 12 o’clock position. Because of this action it has to has to have a really tight fit, if not it drifts away from  the 12 o’clock position. Cousins are good source for watch hands.

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Hi, no problem, yes, that what was happening when the fly back button was pressed. The tube was the wrong size and was just sitting on top of the pin and not all the way down. I will check out cousins.

Many thanks.

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Hi, I have checked Cousins and found two chronograph hands that may fit the bill. Both are 16mm long, one is 0.25mm diameter and the other is 0.27mm. I will buy both and see if either does the job. I will let you know the result when I receive them.

Thanks again.

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Hi everyone, the centre seconds hands arrived today. The 0.25 was too small but the 0.27mm fitted snugly and stays top dead centre when the fly back button is pressed. Many thanks for all your help.

 

IMG_20200918_131049.jpg

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