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G-SHOCK 2100 Series GA-2100LXB-1A9

Regular price $145.00

Currently sold out. G-SHOCK GA-2100CM-5A is an in-stock option from the same G-SHOCK family.

The octagonal G-SHOCK formula, with a little more personality.

The GA2100LXB-1A9 centers on 200m water resistance. It keeps the core G-SHOCK proposition intact: a watch designed to be worn, not babied.

Our take

The 2100 shape is one of the easiest G-SHOCK designs to wear day to day....

  • Sku: GA2100LXB-1A9
  • Available: Out of Stock
  • Vendor: G-Shock
G-SHOCK 2100 Series GA-2100LXB-1A9
G-SHOCK 2100 Series GA-2100LXB-1A9
Regular price $145.00

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Currently sold out. G-SHOCK GA-2100CM-5A is an in-stock option from the same G-SHOCK family.

The octagonal G-SHOCK formula, with a little more personality.

The GA2100LXB-1A9 centers on 200m water resistance. It keeps the core G-SHOCK proposition intact: a watch designed to be worn, not babied.

Our take

The 2100 shape is one of the easiest G-SHOCK designs to wear day to day. This reference is mostly about choosing the finish that feels like you.

Know before you buy

Case: 48.5 × 45.4 × 11.8 mm. Water resistance: 200 meters. Crystal: Mineral Glass. Power: 3 years on SR726W X 2.

Open Technical Data for the full dimensions and materials, or Features for the function list.

  • Model: GA-2100CM-5A
  • Collection: 2100 Series
  • Strap Material: Bio-based resin
  • Strap Type: Strap
  • Case Material: Carbon / Bio-based resin
  • Case Diameter (Mm): 48.5 × 45.4 × 11.8 mm
  • Crystal Type: Mineral Glass
  • Glass Material: Mineral Glass
  • Other: Neobrite, Carbon Core Guard structure
  • Bezel Material: Carbon / Bio-based resin
  • Shock Proof: Shock Resistant
  • Gross Weight (G): 51 g
  • Power Supply And Battery Life: 3 years on SR726W X 2
  • Water Resistance: 200 meters
  • Compatible Band Size: 145 to 215 mm


World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off
Stopwatch: 1/100-second stopwatch
Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes)
1:00'00~23:59'59 (after 60 minutes)
Measuring unit: 1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer: Countdown timer
Measuring unit: 1 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)
Alarm/Hourly Time Signal: 5 daily alarms, Hourly time signal
LED: White
Calendar: Full auto-calendar (to year 2099)
Mute feature: Button operation tone on/off
Accuracy: ±15 seconds per month
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 (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date

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