G-Shock Analog-Digital 2100 Series Watch 45.4mm in Piano Black - GA2100K-2A

G-Shock GA2100K-2A Analog-Digital 2100 Series Watch 45.4mm in Piano Black

The G-Shock GA2100K-2A 2100 Series men's analog-digital watch combines Carbon Core Guard shock resistance, 200-meter water resistance and Double LED illumination with a nightlife-inspired design. World time covers 31 time zones and 48 cities plus coordinated universal time, while a 1/100-second stopwatch, 24-hour countdown timer and five daily alarms put useful timing functions on your wrist. A glossy, piano-black dial finish contrasts with neon accents and a translucent, matte-finish bezel and resin band, recalling laser strobes and dance-floor haze.

Key Features

Carbon Core Guard and 20 Bar Water Resistance

The G-Shock GA2100K-2A pairs its streamlined 2100 Series design with shock-resistant Carbon Core Guard construction. Carbon and resin form the case and bezel, while mineral glass covers the display. Its 20 bar water-resistance rating adds another practical capability to a watch that brings G-Shock toughness to a music-inspired look.

Double LED Light and Hand Shift

For a quick time check in a dark venue, the G-Shock GA2100K-2A has separate white Super illuminator LEDs for the face and digital display. Choose 1.5-second or 3-second illumination, with afterglow for both. When the hands cover digital information, the hand shift feature moves them aside so you can see the display unobstructed.

Translucent Matte Finish and Neon Accents

Inspired by the shadowy thrill of nightclubs and music festivals, the G-Shock GA2100K-2A brings together deliberately contrasting textures. A newly developed, smooth dial surface provides a clean canvas for the depth of piano black and a glossy finish. Neon accents sparkle like laser light, while the translucent bezel and band take on a matte texture reminiscent of fog-machine haze.

World Time Across 31 Time Zones

Use the G-Shock GA2100K-2A world time function to check the time in another location, with a selection of 48 cities plus coordinated universal time across 31 time zones. Daylight saving time can be switched on or off. The watch also offers 12-hour and 24-hour formats, so you can choose how time is displayed.

1/100-Second Stopwatch and 24-Hour Countdown

Whether you need to measure elapsed time or count down a chosen interval, the G-Shock GA2100K-2A provides both tools. The stopwatch supports split timing and first- and second-place results, measuring in 1/100-second units for the first 60 minutes and 1-second units afterward. Set the countdown from 1 second to 24 hours, using second, minute or hour increments.

Five Daily Alarms and Calendar Through 2099

The G-Shock GA2100K-2A supports five daily alarms plus an hourly time signal for regular reminders. Its full auto-calendar runs through 2099, and the digital display includes month and date alongside the time. Button operation tones can be switched off when you prefer silent button presses.

Approximately Three Years of Battery Life

Two SR726W batteries power the G-Shock GA2100K-2A for approximately three years. Analog hour and minute hands and a day dial sit alongside digital timekeeping, letting you read familiar hands while retaining access to the watch's timing and calendar functions.

Features

• Carbon Core Guard Shock Resistance
  Shock-resistant construction complements the streamlined 2100 Series design.
• 20 Bar / 200-Meter Water Resistance
  Adds water resistance to the watch's shock-resistant construction.
• Double LED Super Illuminator
  Separate face and digital lights offer selectable duration and afterglow for dark settings.
• Hand Shift Feature
  Moves the hands aside to reveal digital information.
• Transparent Color
  A translucent bezel and band capture the look of dance-floor haze.
• Cool Matte Color
  Matte surfaces contrast with the glossy dial for a varied, music-inspired texture.
• Glossy Dial and Neon Accents
  Piano-black depth and laser-like highlights bring nightlife styling to your wrist.
• World Time in 31 Time Zones
  Check 48 cities plus coordinated universal time, with daylight saving on/off.
• 1/100-Second Stopwatch
  Track elapsed time, splits and first- and second-place finishes.
• 24-Hour Countdown Timer
  Choose a starting interval from 1 second to 24 hours.
• 5 Daily Alarms and Hourly Time Signal
  Set daily reminders and use an hourly cue.
• Full Auto-Calendar Through 2099
  Keeps calendar information available alongside digital timekeeping.
• Button Operation Tone On/Off
  Mute button sounds when you want quieter operation.
• Approximate 3-Year Battery Life
  Runs on two SR726W batteries for extended timekeeping between replacements.
• Mineral Glass and Resin Band
  Pairs a mineral-glass display cover with a resin strap.
• 12/24-Hour Format
  Select the time format you prefer.

Footnotes:

The color tone of the listed products may differ from the actual product in some cases.