Casio Vintage Watch B640WD-1AVDF –Product Specifications

• Digital display with popular retro design

• Resin case and bezel

• Stainless steel band with adjustable clasp and safety hook

• Resin glass screen

• LED backlight with afterglow (amber)

• Flash alert that flashes and beeps for alarms and hourly signals

• 1/100‑second stopwatch with multiple modes (elapsed, split, 1st–2nd place):

  • Measures up to 59’59.99″ (first 60 minutes) and up to 23:59:59 thereafter

  • 1/100‑second precision (first 60 minutes), then 1-second precision afterward

• Countdown timer:

  • Ranges from 1 second to 24 hours

  • Adjustable in 1-second, 1-minute, and 1-hour increments

  • Includes auto-repeat function

• Multi-function alarm and hourly time signal

• Full auto-calendar (preloaded until year 2039)

• 12-hour / 24-hour time format option

• Regular timekeeping displays: hour, minute, second, PM indicator, month, date, day

• Accuracy: ±30 seconds per month

• Approximate battery life: 3 years using CR2016

• Case size: approximately 38.9 × 35 × 9.4 mm

• Weight: approximately 49 g

• Water resistance: 50 meters (5 bar)