Designed with readability in mind, Aqualung&';s Compass is perfect for navigation under any conditions. Large easy to read numbers Large side view window allows for easy and accurate navigation Strap is designed to fit a variety of wrist sizes and wet/ dry suit diameters Large, secure 36Adeg ratcheting bezel Luminescent gauge face for easy reading in low light Fluorescent markings at 10Adeg, 20Adeg, 30Adeg, and 130Adeg for navigation in low-light environments