Optimum Time OS121

• 5,4,1,0 ISAF start sequence with audible warning signals (can be silenced)
• 5 minute, 3 minute and multiples of 1 minute programs as well
• Sync" button for instant synchronization if a gun is missed
• Shock Resistant Construction
• ABS Case with integrated soft touch PU Strap
• Heavy-duty stainless steel buckle
• Prominent red start/stop button
• Electro-luminescent backlight feature
• Calendar Function (date/month or month/date)
• Daily alarm function (for wake up calls, etc.)
• Chronograph/stop watch function
• Display Size: 1" Diameter (26mm)
• Digit Height: 3/8" (10mm)
• Water Resistance: 150ft (50m)
• Weight: 1.8oz (50g)