Rare Casio BH-100-1AV Bio Graph, a highly unusual vintage digital watch from the early 1990s.

The BH-100 belongs to Casio’s Bio Graph series and uses the dedicated Module 946. Its special function is based on biorhythm calculations, using the user’s date of birth to display different biological cycles. The watch can store birth dates for up to four people.

A particularly interesting example for collectors of unusual Casio digital watches.

Model: BH-100-1AV

Module: 946

Series: Bio Graph

Movement: Quartz

Display: Digital

This example is NOS (New Old Stock), unused and preserved in excellent original period condition.

Complete with original period box and original period tag/label.

A very unusual and collectible Casio, especially in this original condition.

Please carefully examine all photographs for the exact condition of the watch, box and accessories.