A Citizen Eco-drive with titanium case and band and sapphire crystal. The sapphire is totally scratch resistant. I've banged it into countless objects and it has no visible damage. The titanium is not scratch resistant but it's lightweight and easy to refinish once in a while.
Its battery is recharged by light so it'll go 20 years with zero maintenance but it's recommended to replace the seal every 2-3 years to guarantee waterproofness.
It's pretty accurate even for a quartz timepiece, running fast about 4-5 seconds per month.
Last edited by Ballisticism; 11-19-2012 at 15:39..