Arnold & Son produces some beautiful moon phase watches, and there’s a new piece in the collection with a new twist. Building on the HM Hemisphere Perpetual Moon model, the Arnold & Son HM Double Hemisphere Perpetual Moon watch joins the brand’s Royal Collection. With a second three-dimensional moon, the Arnold & Son HM Double Hemisphere Perpetual Moon watch maintains the visual appeal of previous models but affords the wearer a view of the moon from both the northern and southern hemispheres. The elegant golden constellations along with the gorgeous blue guilloché dial make sure this piece fits in just perfectly with the rest of the line and the brand as a whole.
Measuring in at 42mm, the Arnold & Son HM Double Hemisphere Perpetual Moon case is offered in 18 karat red gold, though perhaps in the future a stainless steel variant will be offered. In any case, the gold with the deep blue guilloché dial is just simply beautiful. The three-dimensional moons themselves are 11.2mm, and are joined by the gold stars resulting in an absolutely mesmerizing look. Regal is the word to describe this dial, and Arnold & Son have produced a piece that will make fans absolutely salivate.
This article is literally the 5th or 6th time that I’ve written about the Arnold & Son Time Pyramid, so for everyday readers, my apologies for repeating myself. With these hot images of the Arnold & Son Time Pyramid Steel Translucent Back I couldn’t help but dive into the watch again. In addition to the advantage of the especially colored sapphire crystal caseback with this model, I believe that the exact same strategy can (and should) be used on other skeletonized dial and movement watches. It really becomes a real problem to inhibit the beauty of a fully skeletonized design with the reality that when people wear these watches that they don’t really need to stare in their very own skin through the dial.Inside that the Arnold & Son Time Pyramid is your brand’s in-house-made caliber A&S1615 manually wound mechanical movement I continue to love. It isn’t only the motion is designed to appear cool – though it’s – but rather the motion has some intriguing mechanical features to boot. For instance, the dual power reserve indicators are a part of a system that uses two mainspring barrels for a quasi-constant induce mechanism. The idea is that a main mainspring barrel is utilized until it mostly melts. At that point, the energy coming from it’s too unreliable to power the gear train for accurate timekeeping. So, then the secondary mainspring barrel kicks in to make sure the most constant power so that the A&S1615 movement is more precise across its 90 hours of power reserve.
The Arnold & Son HM Double Hemisphere Perpetual Moon’s crystal is anti-reflective sapphire and the case back allows for more accurate adjustments to the moon phase by showing a third moon during eight different stages. Once set, the accuracy should hold for 122 years, after which a simple adjustment will guarantee it for another 122 years. The hand-wound movement is an Arnold & Son manufacture A&S1512 which beats at 21,600 bph with a 90-hour power reserve. The movement itself is 5.35mm thick and features 27 jewels, while the case is rated for 30 meters of water resistance. As if the case back weren’t beautiful enough, the Côtes de Genève shown throughout the movement is just lovely.
The Arnold & Son HM Double Hemisphere Perpetual Moon comes with either a brown or black hand-stitched alligator strap and is sure to grab the eye of many a watch lover. The Arnold & Son HM Double Hemisphere Perpetual Moon watch is priced at $30,500. arnoldandson.com