• Battery hatch on back plate : Easy battery replacement.
• Dual-layer display : Displays multiple information levels in Compass and Timer mode.
• Extra-loud alarm : Resonance chamber amplifies alarm for use in noisy outdoor environments.
• Solid aluminum case : Durable, sport utility.
• Strap-keeper post : Locks down strap to prevent flapping.
• Patented Zero Drift technology : Provides extremely accurate altitude information, virtually eliminates barometric drift.
• Real-time Digital compass : Constantly updates direction as you move.
• Ascent and descent rates : Tracks total elevation gained or lost.
• 1000 hour chronograph.
• Seven alarms, and 2 time zones.
• Nike Electrolite : One-touch backlighting.
• Mineral glass crystal : Scratch resistant.
• Polyurethane strap construction : Durable, resists cracking and breaking.
• Stainless steel buckle and back plate : Enhanced durability.
• Water resistant to 100 meters.
• Face Diameter : 48mm (1.9").
• Face Depth : 16mm (0.6").