A. Lange & Söhne

Hello, This long-winded commentary is based on my observation and research on the various Lange L951 calibres that exist today. By the end of this writing, I hope I could cover the different incremental changes Lange has done to the chronograph calibre an...  

I would like to make two remarks. 1) I'm not sure that the DS is based on the L951: it may share of course some elements but the frequency is not the same 2) for me the increase of the power reserve was due more to the removal of a maltese cross rather th... 

1) This is something I overlooked. It's quite easy to get lost in the chronograph module on the displayback side, I forget there is still another layer of movement for the timekeeping side! I'd like to at least back up my claims however, that the chronogr... 

Excellent review. Now I feel a bit more knowledgable about the 1815 Chrono movement. Thanks for posting!

I remember oogling over your HD vids of the 1815 Chrono. Simply beautiful! Regards, skyeriding

You made me remind that the fascination coming from the watches' mechanics was the thing that put me in this passion, when I was only a little boy. Thank you, I'm looking forward for other articles from you! Ciao, Elio

I have written previous articles before (which I won't link here) but did not post them on this forum. They are related to my fascination with chronographs and rattrapantes... Regards, skyeriding

I did more searching online and realised a couple photos that contradicts my findings. Eg there are some old official Lange Calibre photos of the L951.1 that show updated chrono spring levers, or L952.1 that hasn't been updated. However, from actual photo...