Omega Constellation 41 mm 131.30.41.21.01.001

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The storyWhy this reference matters

The Constellation name goes back to 1952, to observatory chronometers, the pie-pan dial and the star. But the watch people wear today doesn't descend from that. It descends from 1982, when a twenty-six-year-old designer fresh out of Geneva's School of Decorative Arts, Carol Didisheim, drew a case with no conventional bezel. Her colleague Pierre-André Aellen had been struck by the way frameless bathroom mirrors hang on a wall, held by small clips. Four claws, two at three and two at nine.

The claws weren't decoration. They pressed the sapphire crystal and its gasket against the case, and that is what sealed the watch and let it stay so flat. Didisheim patented the design in 1985. The first Manhattan ran an ultra-thin quartz movement; the automatics came later. In forty years the silhouette has barely moved, which for a design born in the middle of a decade of excess says a good deal about how well resolved it was.

In 2020 Omega redid the men's collection: up to 41 millimetres, chamfered edges on the case and on the claws themselves, a redesigned crown and, for the first time in the line, a polished ceramic bezel with the Roman numerals in Liquidmetal, an alloy set into the ceramic rather than painted on top of it. The markers were redrawn from the faceting of the Manhattan skyline, and specifically from the triangles of One World Trade Center.

SpecificationsThe numbers, in one table

IdentificationHow to tell it apart

The reference reads itself: 131.30.41.21.01.001 is a steel case on a steel bracelet, 41 millimetres, polished black ceramic bezel with Liquidmetal Romans, black sun-brushed dial and a date at six. The detail that confirms you have this version: the hands, the faceted markers, the logo and the star are 18-carat white gold, and in good light they hold a cooler tone than the polished steel around them.

Watch out for the steel-bezel variant (references 131.33.xx), which from a distance looks the same. And for the previous 39 mm generation (the 123.xx): those have thicker, unchamfered claws, a different crown and a case with less work on its edges. The date at six dates nothing, because it has been there since 2009 — look at the bezel and at the chamfer on the claws.

Fifty metres of water resistance and 13.4 millimetres of thickness. The interesting figure is lug to lug: only 44 millimetres for a 41 mm diameter, because the bracelet starts almost flush with the case. It wears considerably smaller than the headline number.

CollectingWhat collectors check

Polished ceramic scratches less than steel but chips if it takes a sharp knock; check the edges where the claws pass over. And the claws are the most exposed polished surface on the watch: a few micro-scratches are normal, a bite out of one is not, and re-polishing them changes their geometry, which is precisely what defines the model.

Go over the semi-integrated bracelet slowly: play between the links, movement in the butterfly clasp, and whether it closes cleanly first time. Count the spare links in the box, because this bracelet doesn't extend with generic parts and coming up short on the wrist is an expensive problem to solve.

Second-hand, the Constellation moves less than a Speedmaster or a Seamaster: less demand, and less supply too, which means complete sets in good condition turn up without anybody fighting over them. And bear in mind that the METAS-certified 8900 is exactly the calibre Omega fits to models a great many more people are chasing.

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