Optimum Time OS122

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)