Hand of Omega.

Horology The Financial Times reports that Omega watches are introducing a new innovation to their watch movements:

"After increases in recent times engendered by the introduction of new technologies such as the coaxial escapement and the silicon hairspring, the company’s latest innovation, a movement that is antimagnetic to a greater degree than has previously been achieved, will continue the pattern.

"The movement, based on Omega’s calibre 8500, its first proprietary coaxial movement, incorporates non-ferrous materials throughout to negate magnetic interference."

Essentially this is a watch which can be worn around things like MRI scanners without fault.