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TIDAL TICKERS The sea sweeper

Timex Waterbury Ocean Time might be money, but this Timex proves a decent watch doesn’t have to cost the earth. As well as saving you from penury, it’s also designed to save the seas from plastic pollution: its strap, dial and lightweight case all use recycled waste that would otherwise have ended up in the oceans. £90 / timex.co.uk The eco educator

Sea2See Seal 06 With a recycled PET strap and marine plastic case, the Seal 06’s sustainable credentials are watertight. But Sea2See also pays it forward: every watch sale funds 10 days of schooling for a child rescued from fishing exploitation in Ghana. Which, like the vibrant dial, should make a lasting impact. €179 / sea2see.org The solar saviour

MVMT Minimal Sport Ocean Plastic Who needs vowels anyway? From its wavy second hand to dial accents inspired by bioluminescence, everything about this ticker is a tribute to the sea. That includes the use of reclaimed plastic pollution for the case, strap and buckle. It also has a solar panel beneath the dial for renewable fuelling. £169 / mvmt.com

CLASSY CLOCKS The material mixer

Mondaine Essence Mondaine makes a timely entry to the eco revolution with its Essence collection, employing a mix of recycled and renewable materials. Take this pared-back green piece: its case uses nylon derived from castor oil, while the recycled plastic strap sits comfy with a cork lining. £189 / uk.mondaine.com

ECO WATCHES

With the climate clock ticking ever more insistently, Chris Rowlands kits out his wrist with nine timepieces that count the seconds in sustainable style The peaceful piece

Triwa Humanium 39 This one goes beyond green righteousness: attached to a recycled PET strap, the 39’s metal jacket is made from melted-down illegal weapons. From each watch sale, 15% is used to help rehabilitate victims of armed violence and to fund the destruction of further weaponry. £229 / triwa.com

HIGH-END HUGGERS The low-carbon luxury

ID Geneve Circular S Here’s some second-hand news: melted in a solar furnace, the recycled steel in this top-tier timer has a claimed carbon impact 165 times smaller than the conventional equivalent. And the rest of the story is similarly sustainable, including a strap made with green waste from London’s parks. CHF3940 / idwatch.ch The distinctive dial

Oris Aquis Date Upcycle If the face is the mirror of the mind, then the patterned profile of this Swiss watch should give you a clue as to its eco ideas. Available in two sizes, it has a colourful dial whose design is determined by the process used to recycle its source plastic. So no two versions will look quite the same. £1800 / oris.ch The circular sailor

Alpina Seastrong Diver 300 Automatic Calanda Removing one ship from the sea won’t stop water levels rising, but re-using steel from retired vessels will at least keep carbon emissions down. The shell of this watch is crafted using steel that’s 100% recycled, sourced mainly from the maritime industry. £1595 / alpinawatches.com

HOW TO DECIDE

1 Big time Size definitely matters when it comes to buckling up. Some models are large or small by design, but many are offered in two variants to suit different wrists. 2 Down time Most watches offer some water-resistance, but ATM ratings don’t correspond to real-world depths. 3ATM is splashproof, while 10ATM is fine for swimming; divers need 20ATM or more.