mylar melodies on Twitter: "I <3 the retrofuture tech of @CasioUK watches. Want a watch to... - Record 30 seconds of speech? - Evaluate your bio rhythms? - Measure heat up to
Casio BH-100W Bio Graph | Vintage watches, Casio watch, Casio
Vintage Casio BH-100W Biorhythm for sale online | eBay
Vintage Casio BIORHYTHM Chronograph Alarm Watch Men NOS | #168111142
Can anyone help? Trying to find the manual for this BioGraph? It's 946 - BH100 on the back but the manual can't be found on the Casio website. Any help appreciated, as I can't work out the subtleties of the display for the sensitivity and why my birthdate in ...