... actually came from Lange with those blue steel hands or if they were changed later. Cellini sold both blue-handed and "standard" white gold-handed 101.025 watches, so it's certainly possible that someone could've bought a standard model from them and had the hands swapped later, to the less common but more legible blue steel hands. There's no way to tell, as far as I know, and the papers would be the same, I believe. Such swaps happened with dials as well. For example, this Langematik was born with a black dial, but when a Lange collector (the original owner) was on a factory tour over 17 years ago and said to the former CEO of Lange, "It's too bad this watch doesn't have a blue dial," all of a sudden it emerged from Lange looking like this: