This is a ridiculous pen. You have been warned. Ridiculous in that I am insane.
Body Material: Resin/Mother of pearl
Length (capped): 146.3 m/5.76''
Length (uncapped nib-end): 125.0 mm/4.92''
Length (posted): N/A
Barrel Diameter: 7.5 - 12.8 mm/0.29'' - 0.50''
Section Diameter: 9.6 - 9.9 mm/0.37'' - 0.39''
Nib material: 18KT Gold
Weight (all): 70 g
Weight (cap): 28 g
Weight (body): 42 g
Fill type: Piston-filler
Price: € 2.550,00
Where to buy: La Couronne du Comte (Discount code: GOURMET10 for 10% off your purchase, but as required per Montblanc, does not include... Montblanc.)
NIB & PERFORMANCE
The 18kt gold rhodium-plated nib is a medium. It has a single slit and a round breather hole. The nib is engraved with 4810, the Montblanc logo, the gold content, and some flourishes. As usual, Montblanc did not indicate the nib size.
The piston operates very smoothly. When being capped, the cap glides closed and locks into place, without over tightening, and the stripes then line up. Nice attention to detail and it's a delightful mechanism. Great performance overall.
The clip is snug, but can be used. It's better that the clip is snug on this one, given the pen's weight.
The section is shaped like that on the resin 146 - round and straight to the nib, ending in a blunt edge. It isn't a sharp edge, and there is ample gripping room. The metal threads are not sharp but they are metal, so if you were to grip them, you would notice them. It is a metal section and although it isn't slippery, it is a heavy pen and there isn't much to hold on to (ie. indent/ridge). I find it best to hold it closer to the threads and extend my fingers up the barrel - this gives me the best control over the pen and nib, and it's most comfortable.
It is not significantly larger than a 146, but side by side, you can see a small difference. The Moon Pearl is a little thicker, and is heavier in hand.
A very expensive but beautiful pen. There's no getting around it - the price is a huge, rather painful, absurd premium for the name. Piston-filler, 18kt gold nib, mother of pearl, all that aside... it's expensive. It writes perfectly. I can't really justify it. It's crazy. Good thing I love it and use it constantly.