Optimum OS 628b OS 628b (Black Bezel)

Item #: 20351A

Optimum OS 628b/m

Features

Rugged stainless steel case

Silicon rubber strap

Heavy-duty stainless steel buckle

26mm round display

Large 10mm digit height

Single row display

Water resistant to 10 ATM

Shock resistant construction

Normal timekeeping mode (12 or 24 hour)

Calendar function (day/month or month/day)

Alarm function (for wake up calls, etc)

Countdown repeat option or

Countdown and up to show elapsed time for handicap races

5, 4, 1, 0 ISAF start sequence pre-programmed with audible warning signals (can be silenced if preferred)

5 minute, 3 minute and multiples of 1 minute programs as well

"Sync Button" for instant synchronization if a gun is missed

Electro-luminescence backlight feature