[5] On 11 August 2012, this unit was publicly unveiled in its all-over yellow livery formerly carried when it operated on the TRTA Ginza Line.

[7] In February 2016, car 1001 received a red roof, more closely resembling the livery carried by the Ginza Line TRTA 2000 series trains.

[9] DeHa 1002 was repainted into a new orange and blue livery in 2007 designed by Tetsuko no Tabi writer Naoe Kikuchi, intended to evoke an image of the sun rising across the sea.

[1] In 2011, DeHa 1002 was repainted into a new livery based on the former TRTA Marunouchi Line colour scheme of red with a white bodyside stripe.

[11] The trains featured longitudinal seating, and were equipped with fare collection boxes at each end for wanman driver only operation.

The driving cab at the up (Choshi) end was badly damaged, and the car was sent to Keio Juuki Seibi for repairs.