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Distinct Dual Time Display
Deep Sunburst Navy Dial
Stainless Steel Mesh Bracelet
Ultra Thin Rectangular Profile
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Casio AQ-230EM-2ADF masters the elusive balance between retro-futurism and understated elegance. Built around a compact 38.8mm by 29.8mm rectangular silhouette that stands just 8.1mm off the wrist, it occupies a discreet, tailored profile. The stepped chrome-plated case frames the wrist with architectural clarity, sliding under a French cuff without resistance yet asserting crisp geometric presence when worn bare-armed.
Brand: Casio
Gender: Unisex
Brand Origin: Japan
Series: Vintage
Additional Information: Analog-digital dual display with mesh band
Model: AQ-230EM-2ADF
Movement: Quartz
Movement Source: Japan
Power Reserve: Approximately 3 Years (Battery: SR920W)
Precision: ±30 seconds per month
Features: Dual Time, 1/100-Second Stopwatch, Daily Alarm, Auto-Calendar
Engine: Casio Quartz Module (Cal. 5154)
Jewels: Not Specified
Caliber No: 5154
Case Size: 29.8 mm
Lug-to-lug: 38.8 mm
Case Thickness: 8.1 mm
Band Width: 18 mm
Band Type: Bracelet (Mesh Band)
Dial Color: Navy Blue (Sunburst)
Case Color: Silver-tone
Band Color: Silver-tone
Bezel: Fixed Stepped
Bezel Color: Silver-tone
Bezel Material: Resin / Chrome-Plated
Case Material: Resin / Chrome-Plated
Band Material: Stainless Steel Mesh
Water Resistance: Water Resistant (Splash/Rain Resistant)
Functions: Dual Time, Hours, Minutes, Digital Seconds, 1/100-Second Stopwatch, Daily Alarm, Hourly Signal, 12/24-Hour Format
Calender: Auto-Calendar (28 days for February)
Watch Style: Retro / Vintage / Dress-Casual
Weight: 52 g
Warranty: 1-Year Manufacturer Warranty
Case Back: Solid (4-Screw Fastening)
Case Shape: Rectangular
Clasp: Self-Adjustable Sliding Clasp
Crystal: Resin Glass
Crystal Coating: Not Specified
Crown: Recessed Crown / Side Lateral Pushers
LumiBrite: None
Known By: Casio AQ-230EM-2A, Casio Vintage AQ-230EM-2ADF
Casio’s Vintage collection serves as an enduring testament to the late-20th-century quartz revolution, an era when Japanese micro-engineering redefined timekeeping standards. Introduced during the 1980s, the AQ series established a dedicated design template by merging traditional two-hand analog dials with liquid crystal operational modules.
Ticking within the AQ-230EM-2ADF is a proprietary Japanese Casio dual-display quartz module, engineered for dependable multi-register synchronization. Controlled by a 32,768 Hz quartz crystal oscillator, the integrated circuit maintains an accuracy tolerance of ±30 seconds per month, outperforming mechanical travel watches in consistency and shock tolerance.
