Always have a backup to items that you could be potentially relying on for your survival. In the military we were issued the old school Lensatic compasses for our land navigation courses and field exercises. As an infantry Marine I needed to know how to navigate using a compass and map (No fancy GPS electronics). What if our primary Lensatic compass was either lost or compromised? Most of us either had smaller watch band compasses or just used our watches and the sun. The problem with most of the watch band style compassed back then was durability. They were easily cracked and fell off the watch band or developed bubbles in the fluid which affected the accuracy and usability.
I’ve seen very few backup watch band style compasses today that I would be willing to count on in a survival situation. One of those is from Prometheus Design Werx. In a previous article took a quick look at this compass, but we have now been able to get our hands on one to see first hand how well it works and how durable it really is.
Although you can wear it on a Nato watch band or similar style watch band, they also give you the option of using a silicone strap which we will cover.