The Unveiled Secret comes down to 39mm, picks up a wine-red dial, and asks you to look straight through it.
The usual arrangement with a fine chronograph is that you get a tidy dial on the front and the interesting machinery on the back, hidden behind a window that only the owner ever really looks through, and Minerva has spent years quietly refusing to play along with that. What it does instead, and does again with The Unveiled Secret, is turn the entire movement around so that the complicated side faces the wearer, and then it keeps going, thinning the dial down until there’s almost nothing between your eye and the mechanism.
None of this is entirely new to the house, which first pulled off the reversed chronograph back in 2022 in a 43mm case, and did it with the sort of confidence you’d expect from a workshop that has been building movements in the same Villeret building since 1858. The trouble with 43mm is that it’s a great deal of watch and rather particular about whose wrist it lands on, so the genuinely interesting development this time isn’t that the watch got cleverer but that it got smaller, and getting it smaller turned out to be the hard part.
Dropping to 39mm sounds like a rounding error until you consider what it actually demands — flipping the hands means re-engineering them so they still sweep clockwise, and doing all of that again inside a tighter case left Minerva with no real choice but to start from a blank sheet. What came off that sheet is the Calibre M13.26, patented and shown here for the first time, a hand-wound movement of 259 parts and 25 jewels whose plate and bridges are cut from rhodium-plated German silver and finished, as ever, almost entirely by hand. It beats at a leisurely 18,000 vibrations an hour – 2.5 Hz, the slow old rhythm of classical watchmaking – over a freesprung balance and an in-house hairspring shaped with a Philips curve, and a full wind buys you somewhere around 60 hours before it stops.
Peer into the dial and the movement more or less introduces itself, with the Minerva arrow at one o’clock, the V-shaped chronograph bridge that serves as one of the manufacture’s signatures holding down four, and the balance cock sitting over the balance wheel at six – which, being the one component that visibly moves, is the part your eye keeps drifting back to.
Calling the dial skeletonised doesn’t quite cover it, since what remains is really just an outer ring carrying the luminous rose-gold hour markers plus three open rings laid across the middle, and everything in between is glass and gears. The running seconds tick away at nine while the centre stacks the hour hand, the minute hand (both filled with white Super-LumiNova®) and the chronograph seconds hand onto a single arbor, and over at three the 30-minute counter keeps score with a hand cut in the shape of Minerva’s arrow, the kind of flourish you’ll either clock straight away or never notice at all. Holding the whole composition together is a deep wine-red and running off the dial and onto a matching semi-matte alligator strap; put it under rose gold and a domed sapphire crystal and the thing reads less like jewellery than like a bottle of something you’d have to know the right person to get hold of.
Two versions exist: the Limited Edition 18 wrapping a solid 18K rose gold case in a fluted bezel set with 84 brilliant-cut diamonds – roughly 0.62 carats around the rim – and stopping at eighteen pieces; the Limited Edition 58 says the quieter thing, pairing a steel case with a solid 18K rose gold bezel and no stones at all, and running to fifty-eight. Beneath the surface they’re the same watch, sharing the movement, the 39mm case, a 14.18mm height and a deliberately modest 30 metres of water resistance, and on both the monopusher lives inside the fluted crown – stamped with the Minerva arrow – so a single press starts, stops and resets the chronograph.
The ceremony carries on past the watch itself and into the box, which comes in walnut veneer with a hidden opening system, an engraved steel plate on top and the Villeret coat of arms worked into the latch, and if that seems like an enormous amount of theatre for a wristwatch, it’s rather in keeping with a house that remains one of the last where nearly every operation is still done by hand, each piece seen through from first part to last by a single watchmaker.
