ⓘ Notice


YF30

May 15, 2024

To keep our CITIZEN CONNECTED services safe and secure, we will stop supporting Android 8 and older versions .

If you are using Android 8, please update your device to a newer version of Android OS. We apologize for any inconvenience but we appreciate your help and understanding.

Please note that we will no longer be able to guarantee the functionality of our services on Android 8 devices after the end of support. Additionally, we may terminate access to our services for Android 8 users without prior notice.

Thank you for your continued support of CITIZEN Watch.

March 19, 2024

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

March 15, 2024

Thank you for using Riiiver.

We will conduct maintenance of the Riiiver server on the schedule below.

Riiiver service may temporarily become unavailable during the maintenance.


Server maintenance period:

March 18, 2024, 10:00 a.m. - 8:00 p.m. (Japan time)


We are very sorry for inconvenience and thank you in advance for your patience.

January 23, 2024

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

January 18, 2024

Thank you for using Riiiver.

We will conduct maintenance of the Riiiver server on the schedule below.

Riiiver service may temporarily become unavailable during the maintenance.


Server maintenance period:

January 22, 2024, 10:00 a.m. - 8:00 p.m. (Japan time)


We are very sorry for inconvenience and thank you in advance for your patience.

December 12, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

December 5, 2023

Thank you for using Riiiver.

We will conduct maintenance of the Riiiver server on the schedule below.

Riiiver service may temporarily become unavailable during the maintenance.


Server maintenance period:

December 11, 2023, 10:00 a.m. - 8:00 p.m. (Japan time)


We are very sorry for inconvenience and thank you in advance for your patience.

November 21, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

November 17, 2023

Thank you for using Riiiver.

We will conduct maintenance of the Riiiver server on the schedule below.

Riiiver service may temporarily become unavailable during the maintenance.


Server maintenance period:

November 20, 2023, 10:00 a.m. - 8:00 p.m. (Japan time)


We are very sorry for inconvenience and thank you in advance for your patience.

October 3, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

September 29, 2023

Thank you for using Riiiver.

We will conduct maintenance of the Riiiver server on the schedule below.

Riiiver service may temporarily become unavailable during the maintenance.


Server maintenance period:

October 2, 2023, 10:00 a.m. - 8:00 p.m. (Japan time)


We are very sorry for inconvenience and thank you in advance for your patience.

September 26, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

September 21, 2023

Thank you for using Riiiver.

We will conduct maintenance of the Riiiver server on the schedule below.

Riiiver service may temporarily become unavailable during the maintenance.


Server maintenance period:

September 25, 2023, 10:00 a.m. - 8:00 p.m. (Japan time)


We are very sorry for inconvenience and thank you in advance for your patience.

September 5, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

September 1, 2023

Thank you for using Riiiver.

We will conduct maintenance of the Riiiver server on the schedule below.

Riiiver service may temporarily become unavailable during the maintenance.


Server maintenance period:

September 4, 2023, 10:00 a.m. - 8:00 p.m. (Japan time)


We are very sorry for inconvenience and thank you in advance for your patience.

July 11, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

July 4, 2023

For server maintenance, Riiiver service will temporarily become unavailable in the period shown below.


Server maintenance period

July 10, 2023 10:00 a.m. - 10:00 p.m. (Japan Time)

(Depending on conditions, the period may become longer.)


We apologize in advance for any inconvenience this may cause.

July 4, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

June 29, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully. You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

June 23, 2023

For server maintenance, Riiiver service will temporarily become unavailable in the days shown below.


Dates and time of the server maintenance:

June 28, 2023 10:00 a.m. - 8:00 p.m. (Japan Time)

July 3, 2023 10:00 a.m. - 8:00 p.m. (Japan Time)

(Depending on conditions, the time may become longer.)


We apologize in advance for any inconvenience this may cause.

June 6, 2023

Thank you for your patience during our scheduled Riiiver maintenance, which has completed successfully.

You should now be able to use the service as usual.

Thank you for your continued support of Riiiver.

May 26, 2023

For server maintenance, Riiiver service will temporarily become unavailable in the period shown below.


Server maintenance period

June 5, 2023 10:00 a.m. - 11:59 p.m. (Japan Time)

(Depending on conditions, the period may become longer.)


We apologize in advance for any inconvenience this may cause.