Once in a blue moon.

You know you can always count on Jaeger-LeCoultre to send out a dressy timepiece from its Master collection. From the Master Control Date to the Master Ultra Thin, the collection is a dapper gentleman’s best friend.

This year, it sees three new additions with complications like the moonphase, tourbillon, date and perpetual calendar. But rather than focus solely on the technical expertise involved in creating the pieces, the brand is introducing its 'Art of Precision'—a mantra which combines tech chops with artistic flair and know-how.

Leading the lineup is the Master Ultra Thin Moon Enamel, an elegant blue stunner with a hand-guillochéd enamel dial. Courtesy of both the brilliant finish on the enamel, as well as the patterned sunburst guilloché, the dial is beautifully nuanced at every angle.

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In a sleek update, the hour markers are now thinner and longer, appearing more like slightly tapered baton markers than the previous triangular markers. The moonphase sub-dial also features an engraved counter and a new polished moon, with the sub-dial redesigned to reflect the minutest detail in the star-studded galaxy.

Driving the watch is the Calibre 925 (above), introduced in 2011 especially for the Master Ultra Thin Moon 39. Known for its svelte proportions—the movement is just 4.9mm in height—the Calibre 925 allows for a slim profile on the wrist. Even after being wrapped in a white gold case, the watch is still a comfortable 10.04mm in height, easily slipping under a cuff.

While it’s slender and sophisticated, what’s most striking about the Master Ultra-Thin Moon Enamel is really how gorgeous the dial looks. If Jaeger-LeCoultre’s point was to drive home its artistic capabilities, this model is right on the money.