"E657系K18編成が登場" [E657 series set K18 appeared]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 15 November 2019. Archived from the original on 28 November 2019. Retrieved 28 November 2019.
"【JR東】 E657K19編成がJ-TRECを出場" [(JR East) E657 set K19 J-TREC]. rail.hobidas.com (in Japanese). Neko Publishing. 14 December 2019. Archived from the original on 23 March 2020. Retrieved 23 March 2020.
hobidas.com
rail.hobidas.com
"DT78 TR263A TR263B / JR東日本E657系" [DT78 TR263A TR263B / JR East E657 series]. Bogie Closeup (in Japanese). Japan: Neko Publishing. 23 February 2012. Archived from the original on 3 March 2016. Retrieved 24 February 2012.
"【JR東】 E657K19編成がJ-TRECを出場" [(JR East) E657 set K19 J-TREC]. rail.hobidas.com (in Japanese). Neko Publishing. 14 December 2019. Archived from the original on 23 March 2020. Retrieved 23 March 2020.
ibaraki-np.co.jp
"常磐線特急、12年春から新型車 振動低減や無線LAN 出入り口に防犯カメラ" [New trains to be introduced on Jōban Line limited express services from spring 2012]. The Ibaraki Shimbun (in Japanese). Japan: Ibaraki Shimbun Co., Ltd. 7 December 2010. Archived from the original on 9 December 2010. Retrieved 8 December 2010.
jreast.co.jp
常磐線特急に新型車両を導入! [New trains to be introduced on Jōban Line limited express services] (PDF) (in Japanese). Japan: East Japan Railway Company. 7 December 2010. Archived(PDF) from the original on 13 May 2015. Retrieved 7 December 2010.
jrmito.com
常磐線特急ひたち号の編成変更について [Changes to Joban Line Hitachi limited express formations] (PDF). News Release (in Japanese). Japan: East Japan Railway Company - Mito Division. 8 August 2013. Archived from the original(PDF) on 3 September 2013. Retrieved 8 August 2013.
railf.jp
"E657系K-1編成が試運転" [E657 series set K-1 testrun]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 27 May 2011. Archived from the original on 8 August 2018. Retrieved 28 May 2011.
JR東日本水戸支社,E657系にE653系のリバイバル塗装を実施 [JR East Mito division announces E657 series to be repainted in original E653 series liveries]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 18 November 2022. Archived from the original on 3 May 2023. Retrieved 3 May 2023.
E657系K17編成が「フレッシュひたち(緑)」カラーに [E657 series set K-17 repainted in "Fresh Hitachi" (green) livery]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 January 2023. Archived from the original on 3 May 2023. Retrieved 3 May 2023.
E657系K12編成が「フレッシュひたち(紅梅)」カラーに [E657 series set K-12 in "Fresh Hitachi (scarlet blossom)" livery]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 13 February 2023. Archived from the original on 3 May 2023. Retrieved 3 May 2023.
"E657系K3編成がフレッシュひたち(橙色)カラーになって出場" [E657 series set K3 appears in fresh Hitachi (orange) colour.]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 28 September 2023. Retrieved 28 April 2024.
"E657系K18編成が登場" [E657 series set K18 appeared]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 15 November 2019. Archived from the original on 28 November 2019. Retrieved 28 November 2019.
常磐線特急に新型車両を導入! [New trains to be introduced on Jōban Line limited express services] (PDF) (in Japanese). Japan: East Japan Railway Company. 7 December 2010. Archived(PDF) from the original on 13 May 2015. Retrieved 7 December 2010.
"常磐線特急、12年春から新型車 振動低減や無線LAN 出入り口に防犯カメラ" [New trains to be introduced on Jōban Line limited express services from spring 2012]. The Ibaraki Shimbun (in Japanese). Japan: Ibaraki Shimbun Co., Ltd. 7 December 2010. Archived from the original on 9 December 2010. Retrieved 8 December 2010.
"DT78 TR263A TR263B / JR東日本E657系" [DT78 TR263A TR263B / JR East E657 series]. Bogie Closeup (in Japanese). Japan: Neko Publishing. 23 February 2012. Archived from the original on 3 March 2016. Retrieved 24 February 2012.
常磐線特急ひたち号の編成変更について [Changes to Joban Line Hitachi limited express formations] (PDF). News Release (in Japanese). Japan: East Japan Railway Company - Mito Division. 8 August 2013. Archived from the original(PDF) on 3 September 2013. Retrieved 8 August 2013.
"E657系K-1編成が試運転" [E657 series set K-1 testrun]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 27 May 2011. Archived from the original on 8 August 2018. Retrieved 28 May 2011.
JR東日本水戸支社,E657系にE653系のリバイバル塗装を実施 [JR East Mito division announces E657 series to be repainted in original E653 series liveries]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 18 November 2022. Archived from the original on 3 May 2023. Retrieved 3 May 2023.
E657系K17編成が「フレッシュひたち(緑)」カラーに [E657 series set K-17 repainted in "Fresh Hitachi" (green) livery]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 January 2023. Archived from the original on 3 May 2023. Retrieved 3 May 2023.
E657系K12編成が「フレッシュひたち(紅梅)」カラーに [E657 series set K-12 in "Fresh Hitachi (scarlet blossom)" livery]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 13 February 2023. Archived from the original on 3 May 2023. Retrieved 3 May 2023.