Earlier this year, H. Moser & Cie. unveiled a truly spectacular one-of-a-kind timepiece, named The Moser Nature Watch.

Unfortunately this mechanical piece isn’t available for purchase. It was, instead, created to remind collectors of the brand’s commitment to eco-friendly and sustainable watchmaking developments.

Swiss made using plants grown in the gardens of H. Moser’s Schaffhausen-based manufacture, the watch also reminds its creators to stay true to three commitments: the fulfilment of certification conditions imposed by the Responsible Jewellery Council; the use of Fair Trade materials as often as possible; and to guarantee a zero carbon footprint by using more efficient methods of watchmaking.

See also: Travels In Time: The Inspiring History Behind H Moser & Cie

The Skeleton X boasts a new movement that shines a light on Ulysse Nardin’s exquisite technology. 

Its open-worked dial allows the wearer to see the watch’s painstakingly cut and finished inner-workings, and most notably comes in a new and light, sustainable material called Carbonium Gold.

The production of Carbonium has 40 per cent less environmental impact than other carbon composites because it uses offcuts from aeronautical pieces. Not only does this mean the Skeleton X is environmentally friendlier than most, it also comes with a stunning marbling effect due to the fusion of carbon and gold.

See also: Bare Bones: 13 Luxury Skeleton Watches We Love

The Mike Horn Special Edition has been talked about a lot since its unveiling at this year's SIHH.

The timepiece was made in collaboration with–yes, you guessed it–Mike Horn, a South African-born Swiss adventurer. The solo explorer has done it all, from walking the North Pole (and during the dark season!) to swimming the Amazon River and trekking the Arctic Circle.

The professional diver's watch is limited to just 19 pieces worldwide, and comes with a personalised case back that's engraved with Horn's signature. Its crown protecting device, bezel and case back are all made of Eco-Titanium, and its light, but strong, bracelet is made of recycled plastic.

The new L.U.C Flying T Twin made headlines this year because its Chopard’s first calibre equipped with a flying tourbillon.

A sophisticated timepiece, it’s also notable for its use of ethically certified Fairmined rose gold. Limited to 50 pieces and designed for the most elegant watch-wearing gentlemen, its further certified by the “Poinçon de Genève” quality hallmark.

The fact that this piece’s hand-guilloché dial and ultra-thin case is made from 18-karat ethically certified Fairmined rose gold isn’t surprising considering Chopard’s history as the world's main purchaser.

Since July 2018, the maison has been using 100% ethical gold for the production of all its watches and jewellery, which is all responsibily sourced from artisanal mining cooperatives, where both the environment and workers are treated properly.

Nevertheless, here at Hong Kong Tatler, the L.U.C Flying T Twin is worth celebrating.

See also: Chopard's Journey To Sustainable Luxury

It’s been more than 60 years since the first Breitling Superocean models hit boutiques in 1957, but the collection remains a favourite, having been added to throughout the years with upgraded editions that reflect the brand’s deep-water DNA.

“Our Surfers Squad and our partnerships with Outerknown and Ocean Conservancy speak volumes about our affection for the seas,” said Breitling CEO Georges Kern. “With the new Superocean collection, we have created watches for people who want to explore the oceans, whether they are active in water sports or in clean-up initiatives.”

Breitling's partnership with non-governmental organisation Ocean Conservancy works towards achieving and maintaining healthy oceans and clean beaches. The brand supports the agency's coastal-cleanup operations, which occur in over 153 countries.

See also: The Dior Watch With 200 Million Possibilities