Luminox launches a limited edition Bear Grylls Survival 3723.R3. This timepiece incorporates all the design elements of the original, but with a different theme and color. The R3 represents the very important 'Survival Rule of 3' that outdoor adventurers must adhere to during survival situations. The 'Survival Rule of 3' states that one can survive without; Air for 3 minutes, Shelter for 3 hours, Water for 3 days, and Food for 3 weeks. This shows the priorities in which one will have to secure in order to live through extreme conditions. The rules are also printed and attached onto the strap to service as a reminder.