A nice AVI-8 watch which has a green strap. Just swap out the batteries when the watch stops.
From Amazon
AVI-8 Mens 45mm Hawker Hunter Retrograde Chronograph Deep Green Black Japanese Quartz Pilot Watch with Leather Strap AV-4052-08
The product is available from £191.50 at international stores.
Watch Shop
Mens AVI-8 Chronograph Watch - Green / Green