Casio F-10 is super rare 1980 Casio’s very first resin case watch.
Casio F-10 is super rare 1980 Casio’s very first resin case watch.
Perfect condition
New battery and serviced
Vintage box included which is almost perfect.
one of the rarest watches in our store
The 1980 Casio F-10 is historically significant as Casio’s very first mass-market digital watch wrapped entirely in a resin case.
It laid the exact engineering foundation for the iconic, globally ubiquitous F-91W.
The Casio F-10 is a highly sought-after, ultra-rare vintage digital watch released in 1980.
Originally retailing for just $6.95, this JDM (Japanese Domestic Market) model featured a simple resin case, standard digital timekeeping (time, day, and date), and a module 155. Today, New-Old-Stock (NOS) pieces are rare collector's items and can command loads of money when available
- Module: Powered by the vintage Casio Module 155.
- Case: Lightweight black resin with a matching integrated plastic resin strap.
- Dimensions: Ultra-slim profile compared to the bulky steel digital watches of the late 1970s.
- Accuracy: Rated at ±30 seconds per month under normal temperatures.
- Battery: Originally powered by a BR2016 (or modern CR2016) lithium coin cell, yielding a massive 5-year battery life.
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The days of the week (
SU M T W T F S) are printed directly onto the fixed glass crystal face above the LCD panel. - A small, physical liquid crystal dash (➖) appears on the top row of the screen.
- This dash moves horizontally day by day, physically pointing upward to label the correct printed day.
- Time Display: Displays hours, minutes, seconds, and an AM/PM indicator.
- Calendar: Displays month, date, and day of the week via the indicator line.
- Calendar System: Includes a basic auto-calendar programmed to account for 28 days in February (requires manual adjustment on leap years).