Lovesss*CL





Although I like the original luminous hands as well, I prefer the blued hands if I had the choice for the Pisa.
Congrats on the successful experiment. And John you can always switch them back since you have the luminous hands.
This looks more balanced to me than the 1815 Chronograph WG, with the big date and bigger sub-dials.
And a lovely watch for sure!!!
As per the hands, i´m not an overly huge fan of unauthorized modifications.
Sure 22" wheels can do well on a Rolls-Royce, but for most of the time to me it seems there´s a reason they don´t come with these straight from the factory... 
Aside service/warranty issues (unauthorized modifications terminate all warranties that may apply), i think the Pisa Dato already is special. It just don´t need the blue hands and the heavy contrast is not my preferred choice. It´s certainly a very legible configuration this way, but then i quite like the luminous hands.
It´s still a very nice watch
Cheers,
Peter
Hi John,
actually i have NO idea!
"Aftermarket" parts and modifications have been subject of discussions (and court decisions) before; i do recall Cartier and Rolex having confiscated parts/watches in the past, but frankly i´m not aware of the handling and legalities in all regions of the world.
The most easy thing to do may be to get in touch with the Lange service you´re submitting the watch to!
From a brands perspective i´d guess the primary concern is to not held responsible for possible defects/problems caused by the conversion work.
From a customers perspective i do see changing the hands is a likewise small "fix" to do and easily retrofitted.
Therefore i´d guess there´s a solution all sides can live with
Cheers,
Peter

Hi John,
i think so!
And in fact, the Lange catalogue mentions a diameter of 39.5mm! So i think that´s correct.
But i´ve never measured one myself
Actually i´ve found the Dato to be slightly heavier, which to me makes a (very subjective) difference in terms of "heft".
Heavy is big, so size does matter in more ways
To me that´s been one reason the Double Split appeared outright HUGE on the wrist; it´s certainly not a small watch, but the very massive and very heavy case probably adds much to the overall impression.
But i do see your point; while the 0.5mm difference in diameter may be hard to notive at arm´s length, the 1815 CHR is 2mm thinner. And that´s something easy to see with an unweaponed eye, resulting in a seemingly larger look to me as well.
I think proportions can make a great difference.
Something subjective may be the choice of dials as well. Personally i find white dials to visually enlarge the watch, such as with the white dial 401.026 and the black dial 403.035:
(images by A. Lange & Söhne)
All in all, best to do is to try one
Happy holidays to you as well!!!!
Cheers,
Peter
(PS: a small addition - i´m trying to help out, but i´m not a moderator of the site
)

From many post, i do see comparisons of the 1815 CHR and the Dato.
These days such are probably obsolete, because the 1815 can´t be had any longer.
But then, do both may do well together, rather choose one over the other.
And particularly because the 1815 is discontinued, i´d guess one may end up with both and just choose which first?
Cheers,
Peter





Hi CL,
Just my thought,your modification is beyond doubt--very nice!and execellent job.
but just like others mentioned the "originality" counts too.So?its yours,do what you like,it doesnt matter what others think?In fact,this shows Lange,their clients' intention and taste!And client's ability to design that might put their design department in the state of shock.
well done!congrats.
BHK9



Hi, CL,
and in this case [personal rant mode on] I consider the original version "un authorized".
Watch design over the centuries developed some unwritten rules - one of them, since introduction of
luminous materials, was -if luminous hands, luminous indications are a must as well.
So, luminous hands without at least some luminous dots on the hours are an absolute no go for me personally.
Some of those design rules aren't that stupid 
What I'd do - change the hour and minute hand to silver, but no luminous.
Change constant running seconds hand to silver - keep blued for chrono seconds hand and minute register.
That's not my "idea" - it's the most traditional set up and makes a lot of sense - as time keeping and chronograph is
well seperated and it looks beautifull as well.
Best regards
Suitbert


The blued hands are what made the 1815 Chronograph so compelling in spite of some distractions that apply only to that reference number. Here it is just right. Do not, I mean this, do not go back.