Meet a trio of translucent timepieces that showcase both their outer and inner beauty.

Ever since Richard Mille paved the way for the first watch with a case entirely in sapphire crystal, other watch manufactures have followed suit to take advantage of the material’s crystal clear profile. Owing to the extreme difficulty and complexity in machining sapphire crystal, it remains uncommon to find a watch with this case. But after it is successfully machined, sapphire crystal is extremely tough - the only other material harder that it is diamond.

1. Girard-Perregaux Quasar

Launched at the recent Miami Watches & Wonders 2019, Quasar has the distinction of being Girard-Perregaux’s first watch with a case entirely made out of sapphire crystal.

The 45mm case reveals the architectural Neo Tourbillon with Three Bridges in all its openworked glory. The GP09400-1035 automatic movement is built without a mainplate, creating the illusion of “floating” arched bridges, which are titanium that has been sandblasted and treated with black PVD.

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2. Hublot Big Bang One Click Sapphire Rainbow

The polished sapphire crystal case is jazzed up with coloured stones, namely baguette-cut sapphires, amethysts, rubies, topazes and tsavorites. Numbering 48 in total, the stones make for a pretty circle around the 39mm case.

Housing the HUB1710 automatic movement with its baseplates visible on the dial side, the rest of the watch is in tone with the crystal, from the white hour markers and numerals to the transparent lined strap.

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3. Bell & Ross BR-X1 Tourbillon Sapphire

What better way to show off the golden allure of this new skeletonised tourbillon movement from Bell & Ross than by housing it inside a sapphire crystal case? Crafted of solid pink gold, all non-essential parts have been removed to create the same lightweight sensation evoked by the sapphire crystal.

Strikingly complemented with pink gold screws and crown, this unique piece is paired with a translucent rubber strap for a mien that is as minimalist as it is luxurious.

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