Casio G-SHOCK GA-2100-1A1JF & GMA-P2100BB-1AJF Pair Watch

Overview

This exclusive pair watch set features the iconic GA-2100-1A1JF for men and the compact, stylish GMA-P2100BB-1AJF for women — both embodying G-SHOCK’s legendary toughness and modern design. Each watch is built with shock-resistant Carbon Core Guard or biomass resin structures, water resistance up to 20 ATM, and advanced features for everyday use. The set comes with a limited edition pair box, perfect for couples or as a thoughtful gift.

GA-2100-1A1JF (Men’s Model)

• Release Date: August 2019

• Retail Price: ¥17,600 (tax included)

• Case Size: 48.5 × 45.4 × 11.8 mm

• Weight: 51g

• Materials: Carbon/Resin case and bezel, Resin band

• Shock Resistance: Carbon Core Guard structure

• Water Resistance: 20 ATM (200 meters)

• Battery Life: Approx. 3 years

Key Functions

• World Time: 48 cities (31 time zones) + UTC, daylight saving support

• Stopwatch: 1/100 sec (<1 hr), 1 sec (≥1 hr), up to 24 hrs, split time

• Timer: Up to 24 hours, 1-second increments

• Alarms: 5 daily alarms + hourly signal

• Lighting: Double LED light (Super Illuminator) for dial and LCD, white LED, afterglow (1.5s/3s)

• Calendar: Fully automatic (leap years included)

• Other: 12/24 hour display switching, needle evacuation function (temporarily moves hands to reveal LCD)

• Accuracy: ±15 seconds/month

GMA-P2100BB-1AJF (Women’s Model)

• Release Date: July 2024

• Retail Price: ¥17,600 (tax included)

• Case Size: 46 × 40.2 × 11.2 mm

• Weight: 40g

• Materials: Resin case/bezel and band (biomass plastic)

• Shock Resistance: Impact resistant structure

• Water Resistance: 20 ATM (200 meters)

• Battery Life: Approx. 3 years

Key Functions

• World Time: 48 cities (31 time zones) + UTC, daylight saving support

• Stopwatch: 1/100 sec (<1 hr), 1 sec (≥1 hr), up to 24 hrs, split time

• Timer: Up to 24 hours, 1-second increments

• Alarms: 5 daily alarms + hourly signal

• Lighting: Double LED light (Super Illuminator) for dial and LCD, white LED, afterglow (1.5s/3s)

• Calendar: Fully automatic (leap years included)

• Other: 12/24 hour display switching, needle evacuation function

• Accuracy: ±15 seconds/month

Included Accessories

• Limited edition pair watch box

• Casio original boxes for each watch

• Instruction manuals