Casio GM-B2100SD-1CDR

Carry on the G-SHOCK legacy — go traditional with the original dial colors of the DW-5000C, the very first G-SHOCK, now in a full-metal watch.

The classic G-SHOCK colors are on full display with faithful reproductions of G-SHOCK red, representing the passion to take on challenges; blue, symbolizing excellent water resistance; and yellow, signifying outstanding shock resistance.

Crafting a stainless-steel bezel of this depth and dimension requires a time-consuming forging, cutting, and polishing process. The bezel top is finished beautifully with a hairline treatment and the beveled edges with a mirror finish for maximum textural beauty.

Achieving a full-metal timepiece with the same original G-SHOCK shock-resistant structure is no easy feat. We installed buffering components made of fine resin between the stainless-steel bezel and case and employed a three-pronged lug for the band connection to disperse shocks to the connecting pipes. The stainless-steel case also features the same screw-lock construction as the original to ensure a tight seal.

Dimpling applied to metal band pieces reproduces the look of the resin band design of the very first G-SHOCK. And the fact that the watch is crafted at Yamagata Casio, the “mother factory” where the first-ever G-SHOCK was made, brings the whole design full circle.

Specifications

• Case/bezel material: Stainless steel
• Stainless Steel Band
• Solid Band
• One-touch 3-fold Clasp
• Tough Solar (Solar-powered)
• Mobile link (Wireless linking using Bluetooth®)
• 200-meter water resistance
• Shock Resistant
• Carbon Core Guard structure
• Double LED light
• LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
• LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds, afterglow)
• World time: 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

• Mineral Glass
• Screw Lock Back
• Neobrite
• Mute Feature: Button operation tone on/off

• 5 daily alarms
• Hourly time signal
• 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, lap/split time

• 12/24-hour format
• Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
• Date/month display swapping
• Battery display/alert: Battery level indicator
• Run time: Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
• Apps: CASIO WATCHES
• App connectivity feature:
  Auto time adjustment
  Easy watch setting
  Approximately 300 world time cities
  Time & place
  Reminder
  Phone finder
• Regular timekeeping:

Analog:2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode)

Digital: Hour, minute, second, pm, month, date

• Full auto-calendar (to the year 2099)
• 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)

• Accuracy: ±15 seconds per month

Size of case / Total weight

• Size of case: 49.8 × 44.4 × 12.8 mm
• Total weight: 165 g