Seibu Chichibu Line

All trains go via Agano Station to the Seibu Ikebukuro line. Abbreviations here are for the table below, not formally used.[1]

  Local (各停, Kakutei) Stops at all stations.

  Express (急行, Kyūkō) (Ex)

  Rapid Express (快速急行, Kaisoku Kyūkō) (RE)

  S-Train (エストレイン, Esutorein) (ST): Morning and evening reserved-seat services between Seibu-Chichibu and Motomachi-Chūkagai via the Tokyo Metro Fukutoshin Line, Tokyu Toyoko Line and Minatomirai Lines at weekends, and between Tokorozawa and Toyosu via the Tokyo Metro Yurakucho Line on weekdays.

  Limited Express (特急, Tokkyū) (LE): Ikebukuro to Seibu Chichibu, trains named Chichibu (ちちぶ), Musashi (むさし), with supplementary limited express charge.

No.	Station	Japanese	Distance (km) to Ikebukuro	Ex	RE	ST	LE	Transfers	Location
SI31	Agano	吾野	57.8	O	O	|	|	Seibu Ikebukuro Line	Hannō	Saitama
SI32	Nishi-Agano	西吾野	61.4	O	O	|	|
SI33	Shōmaru	正丸	64.1	O	O	|	|
SI34	Ashigakubo	芦ヶ久保	70.2	O	O	|	*		Yokoze, Chichibu District
SI35	Yokoze	横瀬	74.2	O	O	|	O
SI36	Seibu-Chichibu	西武秩父	76.8	O	O	O	O	Chichibu Railway Main Line (Ohanabatake Station)	Chichibu

The entire line was opened on October 14, 1969, after over two years of construction, considerably shortening the travel time between Chichibu and Tokyo. Twenty years later, on April 1, 1989, a connection opened to the Chichibu Railway's Chichibu Main Line, and through service began. On March 28, 1996, freight services between Higashi-Yokoze freight terminal and Shin-Akitsu (on the Seibu Ikebukuro Line) ceased. On March 12, 2003, "wanman" (one man) driver only operation began.