Casio has officially launched its Spring 2025 G-Shock collection in Japan. The brand also calls it the Oasis of Day and Night collection, which has four models: Casio GA-110AS-2AJF, GA-2100AS-5AJF, GA-2100AS-2AJF, and the GA-110AS-5AJF.
Design & Theme: Desert Contrast Meets Translucent Style
The Oasis of Day and Night collection draws direct inspiration from the interplay of light and water in desert landscapes. As the brand explains, the GA-2100AS and GA-110AS models are designed to evoke “an enchanting oasis under the midsummer sun,” with details mirroring the shimmering surface of water.


- GA-2100AS: The slim, octagonal base model features a translucent skeleton dial and vapor-deposited indexes that mimic sunlight reflecting off water. Its subdued beige and dark gray tones reflect the duality of desert environments by day and night.


- GA-110AS: The bulkier counterpart retains rugged proportions but incorporates the same “sparkling water surface” aesthetic through its skeletonized dial and metallic indices.
Features
All models come with the following core features:
- 200m water resistance
- Shock-resistant construction
- LED backlight with afterglow
- World time (48 cities)
- Stopwatch, 5 daily alarms
- 2-year battery life
Pricing & availability
Pricing of these new Oasis of Day and Night models in Japan are as follows:
- GA-110AS models – ¥21,450 (~$144)
- GA-2100AS models – ¥19,800 (~$133)
While these models have launched in Japan, Casio has not yet announced international availability. However, previous seasonal collections have often been released in markets like North America and Europe after their initial launch. Until further updates, international buyers may need to purchase from Japanese retailers.
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