Cal. No. W770 Riiiver

W770 Riiiver

Introduction for new visitors


Illustrations for explanation may differ from the actual appearance of the watch you purchased but the difference does not result in functional difference.

On the smartwatch

This watch is a smartwatch, which is able to communicate with a smartphone through Bluetooth.

The dedicated app “CITIZEN Eco-Drive W770” is required to connect it with a smartphone. Download the app from links below and install it on the smartphone.

CITIZEN Eco-Drive W770


Distribution condition of the dedicated app for the watch might vary by country or region. This dedicated app is only available in specific countries or regions under the watch sales territory.

About Riiiver

This watch is compatible with Riiiver.

Riiiver is a service which connects a watch to the Internet through the dedicated app on your smartphone. You can use a watch in more various ways by adding functions utilizing information on the Internet.

Bluetooth 4.0 wireless technology

Reading PDFs