The Straits Times From mint to mantis, fern to forest, a green wave is sweeping through the world of watches (Clockwise from left) Zenith Defy 21 Spectrum, IWC Pilot's Watch Chronograph 41 (with green dial), and Tudor Black Bay 58 18k.PHOTOS: ZENITH, IWC, TUDOR New: Gift this subscriber-only story to your friends and family https://str.sg/JvTk They can read the article in full after signing up for a free account. Share link: Or share via: Sign up or log in to read this article in full Sign up All done! This article is now fully available for you Read now