Casio Collection B640WB-1B
Black, 38.9 × 35.0 mm, module 3294.
- Japan: B640WB-1BJF
- Module 3294
- 38.9 × 35.0 mm
- 50 m
- Resin Glass
Specifications
- Module
- Casio module 3294, quartz · how to set it
- Power
- Approx. battery life: 3 years on CR2016 · other watches that take CR2016
- Accuracy
- ±30 seconds per month
- Case size
- 38.9 × 35.0 mm (length × width)
- Thickness
- 9.4 mm
- Case
- Resin
- Crystal
- Resin Glass
- Water resistance
- 50 m
- Weight
- 49 g
- Strap
- Adjustable Clasp
- Colour
- Black
- Features
- 12/24-hour format, Alarm/hourly time signal, Calendar, Flash alert feature, Light, Light color, Stopwatch, Timer
- Released
- 2012-02
- Series
- Casio Collection
Same case, other colours
Identical case, module and dimensions; only the colours or materials differ.
Questions
What is the Japanese model number of the Casio B640WB-1B?
Casio's Japanese site names it the B640WB-1BJF: the same watch, its code with the Japanese market suffix.
What module is in the Casio B640WB-1B?
Module 3294, a quartz movement. The module number is engraved on the caseback, and Casio's operation manual is filed under it: the module page links the manual and lists every watch that shares it.
What battery does the Casio B640WB-1B take?
CR2016. Casio's figure: Approx. battery life: 3 years on CR2016.
Does the Casio B640WB-1B have a sapphire crystal?
No. The B640WB-1B has a Resin Glass crystal.
How water resistant is the Casio B640WB-1B?
50 m (5 bar). That covers swimming in shallow water, not snorkelling or diving.