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G-SHOCK

GA900-1A

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$319.00
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From G-SHOCK, the toughness watches that are ever evolving in an endless pursuit of strength, this heavy-duty model can be used in tough environments as well as for street fashion.

The nut-like 10-sided bezel is fastened with screws to express the industrial design motif, and is finished in a rugged, tough, and straightforward design. The combination of analogue hands with a digital display also enhances usability.

High visibility is achieved, even in the powerful face, by inserting graphics on the hands and dial. Additionally, the lug ends of the band and all the function buttons, including the front button, are engraved with non-slip checkering for excellent operability.

A work-style G-SHOCK that is both tough and fashionable.

2 year warranty

Basic Information
  • Band
    Resin Band
  • Case and bezel material
    Resin
  • Case size (L × W × H)
    52.8 × 49.5 × 16.9 mm
  • Construction
    Shock Resistant
  • Power supply and battery life
    Approx. battery life: 7 years on CR2016
  • Water resistance
    200-metre water resistance
  • Weight
    65 g

Exterior
  • Compatible band size
    145 to 215 mm
  • Glass
    Mineral Glass

Features
  • Accuracy
    Accuracy: ±15 seconds per month
  • Alarm / hourly time signal
    5 daily alarms (with 1 snooze alarm)
    Hourly time signal
  • Calendar
    Full auto-calendar (to year 2099)
  • Light
    LED light (Super Illuminator)
    Selectable illumination duration (1.5 seconds or 3 seconds), afterglow
  • Mute feature
    Button operation tone on/off
  • Other features
    12/24-hour format
    Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
    Regular timekeeping:
    Analog: 2 hands (hour, minute (hands move every 20 seconds))
    Digital: Hour, minute, second, pm, month, date, day
  • Stopwatch
    1/100-second stopwatch
    Measuring capacity: 23:59'59.99''
    Measuring modes: Elapsed time, split time, 1st-2nd place times
    Others: target time alarm, direct timing start from the timekeeping mode
  • Timer
    Countdown timer
    Measuring unit: 1/10 second
    Countdown range: 60 minutes
    Countdown start time setting range: 1 to 60 minutes (1-minute increments)
  • World time
    World time
    31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping, One-touch UTC Time Zone Access
User Manual – Module 5637

Feature List

  • Black icon of a watch hitting a flat surface with motion lines indicating a shock or impact.

    Shock resistant

  • Black icon of a person snorkeling with the number 20, representing a 20-bar pressure rating for water resistance.

    20 bar water resistant

  • Minimalist black and white icon of a person checking a glowing watch under a crescent moon at night.

    Easy to see in darkness

  • Minimalist black and white icon of a dual-time wristwatch with a main dial and a smaller sub-dial.

    Check dual city time at a glance

  • Minimalist black icon of a wristwatch with a white circular face featuring the word SPORTY in bold black text.

    Sporty design

  • Bold black text reading MATTE in a clean, sans-serif font centered on a plain white background.

    Cool matte color
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