Casio Vintage – Model B640WB-1BVT

Overview

The Casio B640WB-1BVT delivers a bold, modern take on the classic Casio digital look with its black ion plated band and matte-black case. This model blends a popular retro design with upgraded durability, offering a refined, all-black aesthetic that fits casual, street, and minimalist fashion styles.

Designed for everyday functionality, the B640WB-1BVT includes a 1/100-second stopwatch, enhanced 50-meter water resistance, LED backlight with afterglow, and a multi-function alarm. Its countdown timer, flash alert feature, and long-lasting 3-year battery (CR2016) provide practical utility throughout the day.

Built with a lightweight 49 g construction, resin case, and stainless steel band, this model ensures comfortable wear and dependable performance. The black ion plating (Black IP) adds scratch resistance and maintains the deep black finish for longer.

Combining durability, utility, and modern retro style — this is one of the most versatile all-black Casio Vintage models.

Key Highlights

✔ Popular retro digital Casio design
✔ Black ion plated stainless steel band (Black IP)
✔ 50-meter water resistance
✔ LED backlight with afterglow
✔ 1/100-second stopwatch
✔ 24-hour countdown timer
✔ Flash alert feature (buzzer + light)
✔ Full auto-calendar to the year 2039
✔ Lightweight at 49 g
✔ Approx. 3-year battery life (CR2016)

Technical Specifications

Basic Information

• Case Size (L × W × H): 38.9 × 35 × 9.4 mm

• Weight: 49 g

• Case & Bezel Material: Resin

• Band: Stainless steel band, adjustable clasp

• Water Resistance: 50-meter water resistance

• Battery Life: Approx. 3 years on CR2016

Exterior

• Glass: Resin Glass

• Surface Treatment:
  • Black ion plated band (Black IP)

Watch Features

Stopwatch

• 1/100-second stopwatch

• Measuring capacity:
  • 00'00"00–59'59"99 (first 60 minutes)
  • 1:00'00–23:59'59 (after 60 minutes)

• Measuring unit:
  • 1/100 second (first 60 minutes)
  • 1 second (after 60 minutes)

• Modes: Elapsed time, split time, 1st–2nd place times

Timer

• Countdown timer

• Measuring unit: 1 second

• Countdown range: 24 hours

• Start time setting: 1 second to 24 hours (1-second / 1-minute / 1-hour increments)

• Other: Auto-repeat

Alarm / Signal

• Multi-function alarm

• Hourly time signal

Flash Alert Feature

• Flash alert

• Buzzer + light for alarms, hourly signal

Light

• LED backlight

• Light color: LED Amber

• Afterglow

Calendar

• Full auto-calendar (to year 2039)

Other Features

• 12/24-hour format

• Regular timekeeping: Hour, minute, second, PM, date, day

Accuracy

• Accuracy: ±30 seconds per month

Summary

The B640WB-1BVT delivers a sleek all-black finish with strong water resistance, advanced timing functions, and classic Casio digital reliability. Its Black IP stainless steel band, LED backlight, 1/100-second stopwatch, and countdown timer make it perfect for users who want both style and function in a compact retro design.

B640WB-1BVT — Modern all-black style with classic Casio performance.

For more details, visit the official CASIO website here.

Warranty:

• The watch is covered by a official warranty, providing assurance and protection for your purchase.

▶︎Processing Time & Shipping Policy
▶︎Refund policy
▶︎We only carry G-SHOCK USA products.
▶︎Unfortunately, we DO NOT ship internationally.