Casio G-Shock GA-100-1A1 | All-Black Ana-Digi | 20 BAR | Pre-Owned

Casio G-Shock GA-100-1A1 — Stealth All-Black Ana-Digi

The GA-100 is one of the defining G-Shock silhouettes — oversized, unapologetic,
and built to take punishment. This all-black 1A1 colorway eliminates every accent
and visual break: matte resin case, black band, blackout dial, ghost subdials. The
result reads less like a watch and more like a statement. Module 5081 packs world
time across 29 zones, a 1/1000-second stopwatch, countdown timer, five daily alarms,
and a full auto-calendar pre-programmed through 2099. Auto-LED backlight with
afterglow handles low-light legibility. A well-worn daily-beater with strong bones.

Specifications

• Reference: GA-100-1A1 (Module 5081)
• Movement: Casio Quartz, Module 5081 — Japan movement, assembled in China
• Case: Resin / stainless steel caseback — 55 × 51.2 × 16.9 mm
• Dial: All-black analog-digital; three subdials; day/date LCD window
• Bezel: Fixed matte-black resin, ADJUST/REVERSE button guards
• Bracelet/Strap: Black resin band — fits 150 mm–210 mm wrist (approx. 6″–8.3″, small to large)
• Crystal: Mineral glass — scratch-resistant
• Water Resistance: 20 BAR (200 m / 660 ft)
• Origin: Japan movement / China assembly

Complications

• 1/1000-second stopwatch (lap, elapsed, split timing)
• Countdown timer
• World time — 29 time zones
• 5 daily alarms with snooze
• Full auto-calendar (pre-programmed to 2099)
• Auto LED backlight with afterglow
• Anti-magnetic structure
• Shock resistant

Condition

Good. Watch is functional — displays day (MON) and date correctly in images.
Caseback shows moderate surface scratching consistent with regular wear; no deep
gouges or damage to the module seal area. Resin case and band retain their matte
finish with no cracking or brittleness observed. Crystal shows light surface wear.
⚠ Battery and full function test should be confirmed before shipment.

Includes

Watch only.