AKA: QUARTZ, ELECTRONIC CALCULATOR, UNIVERSAL CALENDAR, HQ-31, Product number (P/N): HQ31 (HQ-31),
Keywords/Tags: HQ31 (HQ-31) | QUARTZ | UNIVERSAL CALENDAR
Date of intro: ~1980, Dimensions: 142x76x19mm, Weight: 142g,
Power: 3V: (AA x2),
Display: Type = Display (LCD) (List), Digits = 8+1,
Number of keys: 28,
Classification: / Pocket / Time,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: CASIO_docu: (Cat.) 198102 (Japanese),
Resemblance with: (Resemblance 096B),
Initial Cost Price: 6500 JPY (€ 52,65), Collector value: 7/10,