**Product Specifications:**
**Brand:** CASIO
**Model:** GA-2100
**Series:** G-SHOCK
**Strap Material:** Resin
**Clasp Material:** Metal
**Crystal Material:** Mineral Glass
**Movement Type:** Quartz
**Case Diameter:** 48.5mm (vertical), 45.4mm (horizontal)
**Case Thickness:** 11.8mm
**Water Resistance:** 200m
**Weight:** 51g
**Additional Features:** Shockproof, 20-bar water resistance, dual high-brightness LED lighting, stopwatch (1/100 seconds), countdown timer, 12/24-hour format, full automatic calendar, daily alarm, hourly time signal, hands shift feature.
*Note: Due to variations in production batches and measurement methods, actual product may vary slightly. Dimensions are for reference only.*