Description
Description:
The GST-B100D-1AJF represents CASIO's G-STEEL line pinnacle—a hybrid resin-stainless-steel case design combining tactical aesthetics with professional durability. Sized 58.1 × 53.8 × 14.1 mm, weighing 185 g, this model features a large black resin lower case with stainless-steel upper bezel and case band, delivering a distinctive two-tone visual impact. Powered by Tough Solar with Multi-Band 6 radio-controlled time sync, it eliminates battery changes entirely—approximately 5 months on full charge, extending to 24 months in power-save mode. The large LCD negative-display dial ensures excellent legibility in all lighting conditions via LED Super Illuminator backlight. Built with Triple-G-Resist construction (shock, magnetic, centrifugal resistance), it suits both professional fieldwork and formal settings. Origin: Japan (JDM), Warranty: 1 year, JAN: 4549526236289, Released: April 2020.
Key Specifications:
- Case: 58.1 × 53.8 × 14.1 mm; Weight: 185 g
- Material: Resin lower case / stainless-steel upper bezel and band
- Band: Stainless-steel composite with 3-fold push clasp, adjustable 145–215 mm
- Crystal: Mineral glass
- Water resistance: 20 ATM (200 m)
- Movement: Quartz calibre 5513, Tough Solar + Multi-Band 6
- Battery life: ~5 months (full charge), ~24 months (power-save)
- Accuracy: ±15 s/month (radio-controlled), ±20 s/month (battery)
- Display: Digital LCD negative, LED Super Illuminator (1.5–4 s)
- Functions: 29-city world time, 1/100-second stopwatch, 24-hour countdown, 5 alarms, hourly signal, perpetual calendar to 2099, 12/24-hour format
- Special: Triple-G-Resist (shock, magnetic, centrifugal), shock-resistant JIS Class 1
- Origin: Japan (JDM)
- Warranty: 1 year
- JAN: 4549526236289
- Release date: April 2020
Key Highlights: The GST-B100D-1AJF bridges military-tactical design with everyday wearability through its distinctive resin-steel hybrid construction. The 185 g weight and oversized 58.1 mm case project authority and durability, while Tough Solar + Multi-Band 6 ensure autonomous operation without battery maintenance. Triple-G-Resist engineering and 20 ATM water resistance make it suitable for construction sites, expeditions, and professional environments. The negative LCD and LED backlight provide exceptional low-light visibility, critical for fieldwork. Ideal for collectors seeking large-format G-SHOCK models that combine Japanese precision with rugged tactical aesthetics.


