Casio LF20W-1A Black Resin

By Casio

Casio LF20W-1A Black Resin

Go playful with a selection of charming, timeless designs boasting both analog-style clock and digital time display. The versatility of compact comfort and natural colors that are always in style fits any wrist.

The band is made of bio-based resin produced from renewable organic materials. Packed with handy features like LED lighting, stopwatch, alarm, timer, and world time, these watches deliver ready-for-anything style and practical function.

Water resistance:

  • Splash Resistant

World time:

Multi Time (4 different cities)
World time 31 time zones (48 cities + coordinated universal time)
Daylight saving on/off
Home city/World time city swapping


Countdown timer
Measuring unit: 1/10 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)


LED backlight
Selectable illumination duration (1.5 seconds or 3 seconds)


  • Full auto-calendar (to year 2099)


1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times

Alarm/hourly time signal:

  • Hourly Time Signal
  • 5 alarms (daily or one-time)

Mute feature:

  • Button operation tone on/off
  • Power supply and battery life:

    Approx. battery life: 3 years on CR1616

    Light Color:

    • Amber


    • ±30 seconds per month

    Other features:

    12/24-hour format
    Regular timekeeping: Digital: Hour, minute, second, pm, month, date, day