Piaget

superfly
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Thinnest in their respective categories

any enlightenment on the below would be very much appreciated.

i've been trying to sort out the ins and outs of the ultra-thin watchmaking records, but i'm more confused now than when i started.

so the calibre 1200P/1208P (at 2.35mm) is the thinnest self-winding movement currently on the market. i think i've got that straight.

the reason why the 12P (2.3mm) doesn't have that title is because it's no longer in production. right? did it ever have that title in the first place? the 1960 Piaget automatic powered by 12P did set a record for thinnest automatic timepiece, but did that "thinnest" moniker also apply to the movement itself? no source i've referred to seems to have that information.

also, i'm slightly confused as to why the 1208P is actually slightly thicker than the 12P. is it because of the small seconds on the Altiplano 43mm? but there isn't a small seconds on the anniversary Altiplano 1200P and they're basically the same movement. so their current thinnest in-house production movement is actually thicker than their 50-year-old equivalent? surely this is... pretty counterintuitive.

also, the 9P (2mm) was supposed to be the world's thinnest manual movement when it debuted in 1957, but wasn't that position already taken by JLC's calibre 803 (1.64mm)? and what about VC's 1955 calibre 1003 (also 1.64mm)?

i really don't get it...