Up for sale is a rare and highly collectible vintage Casio Twin Graph II AE-21W men’s digital sports watch, produced for the Japan Domestic Market (JDM) in the 1980s and powered by Module 809. This model is one of Casio’s most iconic and sought-after designs from the golden era of digital watchmaking, celebrated for its distinctive dual-graph display and bold, technical aesthetic.

The watch is in full working condition, with all features and functions operating properly, including timekeeping, alarm, chronograph, dual graph display, and calendar functions. It should also be noted that no pixels are missing on the display whatsoever.

The watch is in excellent physical condition overall, showing signs of use and age consistent with a worn vintage watch. The photos best describe its physical condition. It is fitted with an aftermarket genuine Casio Twin Graph strap.

The watch also comes with a genuine vintage Casio display stand/case, though it is unknown if it is original to this specific watch.

Key Details:

• Brand: Casio

• Model: Twin Graph II AE-21W

• Module: 809

• Era: 1980s

• Market: Japan Domestic Market (JDM)

• Display: Digital with dual graph layout

• Functions: Time, alarm, chronograph, dual graph display, calendar

• Strap: Aftermarket genuine Casio Twin Graph strap

• Included: Genuine vintage Casio display stand/case (originality to watch unknown)

• Condition: Fully working; no missing pixels; excellent physical condition overall with signs of use and age — photos best describe its physical condition

This is one of the most desired Twin Graph models and rarely comes up for sale in such good physical and full working condition.

Ships carefully. Feel free to message me with any questions.