Thursday 17 January 2019.

9ct Longines, calibre 6942, from 1973 today. It has a slightly different hacking mechanism. When you pull the crown out to set the time the second hand doesn’t stop until it reaches the 12 o’clock position. The watch can then be set going to the exact second by pushing the crown back in.

daff62 wrote:9ct Longines, calibre 6942, from 1973 today. It has a slightly different hacking mechanism. When you pull the crown out to set the time the second hand doesn’t stop until it reaches the 12 o’clock position. The watch can then be set going to the exact second by pushing the crown back in.

thats a very simple but clever mechanism in a lovely movement



its a wonder its not standard on all watches now


anyway still this, it does hack but not as stylishly as above

Thanks Bruce

The hacking mechanism was a clever innovation by Longines. Not sure if it was used in any of their other calibres or for that matter replicated by other watch manufacturers.

The movement is lovely....



.....and as well as the hacking feature also has a high beat frequency of 28,800 A/h.

daff62 wrote:Thanks Bruce

The hacking mechanism was a clever innovation by Longines. Not sure if it was used in any of their other calibres or for that matter replicated by other watch manufacturers.

The movement is lovely....



.....and as well as the hacking feature also has a high beat frequency of 28,800 A/h.

i guess thats the difference between high end makers and run of the mill ones, the high end makers can afford to be innovative and maybe take risks now and then