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31

My Top 5 Favorite Watches With Helical Hairsprings

Out of all the “traditional” styles of hairsprings, the helical hairspring is Joshua Munchow’s favorite because it adds three-dimensionality to the watch. These oscillators are so rarely seen that if you are only aware of five watches with helical hairsprings you already know a significant portion of the modern watches using them. Here are Joshua’s favorite five.

32

World’s Biggest Man-Made Calendar: El Castillo At Chichén Itzá (Archive)

Contemplating the ancient pyramid at Mayan archeological site Chichén Itzá in the blazing Yucatán sunlight, Elizabeth Doerr was awestruck by the structure’s complexity. Chichén Itzá’s most famous structure was built to be the world’s largest calendar . . . at a time when calendars didn’t even exist!

34

The Jump Hour: A Love Story – Reprise

The jump hour has a long history, but first things first: it can’t technically be called a complication since the accepted definition of complication is a mechanism that provides information other than the time. However, anyone who gives a hoot will say in the same breath that there are many complications that don’t fit that definition and Joshua Munchow couldn’t agree more. But why does he love the jump hour so much?

36

Detailed Primer On Gemstones And Their Appreciation: An Introduction To The Finer Things

Recently Joshua Muchow has become somewhat informed about gemstones and related techniques in studying for the jewelry-heavy Grand Prix d’Horlogerie de Genève categories we discuss annually. This new information has sparked a significant amount of passion for the topic, leaving him wanting to share some of what he’s learned about one of the most beautiful sides of haute horology: gems and their settings.

37

Watches Powered By Body Heat: Did The Bulova Thermatron Foretell A Matrix PowerWatch Heat-Driven Future?

As we all know quartz became a Greek tragedy, but fortunately one with an eventual happy end for most brands. Well, happy for the Swiss brands but not so much for the American brands, in particular Bulova. Martin Green thinks heat may have played a role here and may well again with the technology showcased by the new Matrix PowerWatch.

39

Prediction Comes True: Panerai Lo Scienziato Luminor 1950 Tourbillon GMT Titanium With DMLS 3D-Printed Titanium Case

Imagine my surprise when, in one of my rare predictions about the future of 3D printing in watchmaking, I got one right: the Panerai Lo Scienziato Luminor 1950 Tourbillon GMT Titanium says it all. It is (as far as I know) the first production watch to utilize 3D direct metal laser sintering (DMLS) printing for the case construction. The case is made of titanium for extra lightness, but that’s not the only, or even the main, reason for using DMLS titanium.