Upside down and inside out, CASIO’s dual-model collaboration mirrors the dual worlds of Stranger Things.

CASIO

Model: G-SHOCK DW-5600STT-1 | CASIO AQ-800EST-1A
Price: S$199 | S$179
Release date: December 2025
Where to buy: CASIO

CASIO

CASIO and Netflix’s Stranger Things reopen the gate to the Upside Down for their sophomore collaboration, delivering a pair of timepieces that drag the series’ parallel realities surface-side.

With the grandfather clock ticking toward the series finale in December 2025, the G-SHOCK DW-5600STT-1 and CASIO AQ-800EST-1A honour the Duffer Brothers opus that has kept audiences ‘Running Up That Hill’ for almost a decade.

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Details from the Upside Down

The G-SHOCK DW-5600STT-1 is entangled in the vines of Vecna, the series’ ultimate antagonist and the architect of Hawkins’ nightmares.

In a clever touch that speaks to the show’s parallel worlds, the letter ‘A’ in ‘LED BACK LIGHT’ is reversed, the red backlight nodding to the Mind Flayer’s storm. When darkness falls, it activates, casting the watch in the show’s signature crimson glow, the harbinger of its most intense moments.

The case back carries the Stranger Things logo, with ‘011’, Eleven’s identifier and the number that defines the show’s primary protagonist, is printed on the band loop.

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The CASIO AQ-800EST-1A tells the same dark narrative, albeit with the tech-forward optimism of the ‘80s that would look right at home on the wrist of the Party in the Starcourt Mall.

The dial features twisting vines for Vecna’s creeping influence, rendered across the watch face. The hour markers employ the distinctive Stranger Things typeface in raised metallic lettering, creating a dimensional finish.

The case back is engraved with the Stranger Things logo, while the clasp cover bears ‘001’, the tattoo that marks Vecna himself.

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Hawkins Lab specifications

DW-5600STT-1:
• Shock resistant
• 200-meter water resistance
• 1/100-second stopwatch
• Timer
• Hourly time signal/Multi-function alarm
• Flash alert
• LED backlight (Super Illuminator/Afterglow)
• Case size (L× W× H): 48.9 × 42.8 × 13.4mm
• Weight: 52g

AQ-800EST-1A:
• Water resistant
• 1/100-second stopwatch
• Daily alarm/Hourly time signal
• Dual time zones
• Case size (L× W× H): 40.7 × 32.1 × 8.7mm
• Weight: 52g

CASIO

The DW-5600STT-1 and AQ-800EST-1A will be housed in a collector’s box replete with Stranger Things motifs. The packaging is swarmed by graphics of the Demogorgon and the twisting vines that bind the series’ lore.

The collaboration arrives just as the clock winds down on the final chapter, celebrating the pop culture juggernaut that single-handedly revived ‘80s nostalgia and turned the world… Upside Down.