Casio G-SHOCK Small Classic Watch GMA-P2100SG-4AER

Introducing the Casio G-SHOCK GMA-P2100SG-4AER, the most romantic and sophisticated version of the iconic octagonal GA-2100 silhouette, reinterpreted within the Small Classic collection. At first glance, what strikes most is the total chromatic coherence: the case, bezel, and matte resin strap adopt a uniform blush pink tone, while the dial surprises with a gradient finish that transitions from pale pink on the outer ring to an intense metallic fuchsia pink at the center. This color play gives it a visual depth rarely seen on a G-SHOCK. The applied rose gold indices shine with understated elegance on the dial, and the hands, in pearlescent white with luminescent tips, contrast perfectly against the background. The analog-digital display, positioned horizontally at 3 o'clock, shows numerical data in black on a neutral background, well integrated into the overall design. The four lateral pushers in grey-finished steel add the industrial counterpoint characteristic of the G-SHOCK line. The bezel carries the inscriptions G-SHOCK, ADJUST, LIGHT, MODE, START, and PROTECTION, all in the same pink tone as the case to maintain aesthetic coherence.

Inside works the Casio module 5730, an analog-digital caliber combining three hands for the main time reading with a compact digital display. This display shows the time in 12/24-hour format, the day of the week, the date, and a second time zone. Available functions include: world time with multiple time zones, 1/100-second stopwatch with capacity up to 1 hour, countdown timer, five daily alarms, hourly time signal, and automatic calendar. Water resistance reaches 200 meters, making it a valid companion for swimming pools and more demanding water activities. Weighing just 40 grams with an approximately 112mm thickness, it is worn with exceptional comfort throughout the day.

G-SHOCK was born in 1983 by engineer Kikuo Ibe, who set out to create an indestructible watch after witnessing one fall to the floor and break. After 200 failed prototypes, the first G-SHOCK capable of surviving a 10-meter drop emerged. Since then, the Small Classic line has adapted that philosophy of resistance to more compact and aesthetic formats, designed for those who refuse to give up either toughness or style. The GMA-P2100SG-4AER represents the ultimate expression of that duality: a G-SHOCK that withstands any impact, yet captivates at first sight.

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Technical Specifications

Reference: GMA-P2100SG-4AER
Module/Caliber: 5730
Type: Analog-Digital
Movement: Quartz
Water Resistance: 200 meters (20 BAR)
Shock Resistance: Yes, Carbon Core Guard structure
Case Material: Resin
Case Color: Matte blush pink
Strap Material: Resin
Strap Color: Matte blush pink
Dial Color: Gradient pink (pale pink to metallic fuchsia pink)
Indices: Applied rose gold
Crystal: Mineral
Illumination: LED
Diameter: 40.2 x 46.0 mm
Thickness: 112 mm
Weight: 40.0 g
Functions: Dual time, world time, 1/100-sec stopwatch (up to 1 hour), countdown timer, 5 daily alarms, hourly time signal, automatic calendar, 12/24-hour format
Battery: CR1025
Made for: Women / Daily and sports use

User manual

Download the manual in English (PDF)