Luminox Watch Bear Grylls Survival Never Give Up XB.3729.NGU. Bear Grylls is the most famous face on the survival and outdoor scene all over the world. He has spent his entire professional life in the wilderness, traversed the world's most extreme regions, and survived the most dangerous situations unscathed. But this world-famous adventurer needs to be able to rely on a few trusty resources. He never faces any of his wild and daring excursions without Luminox.