S-Train (Seibu)

*S-Train*
	S-Train logo, and the Seibu 40000 series used on S-Train services
Overview
Service type	Seat Reserved Commuter Liner
Status	In service
Locale	Tokyo, Saitama, Kanagawa
First service	25 March 2017
Current operator(s)	Seibu Railway; Tokyo Metro; Tokyu Corporation; Yokohama Minatomirai Rwy.;
Route
Termini	Tokorozawa (Weekdays); Seibu-Chichibu (Weekends); ; Toyosu (Weekdays); Motomachi-Chukagai (Weekends);
Line(s) used	Seibu Railway Yurakucho Line; Ikebukuro Line; Chichibu Line; ; Tokyo Metro Yurakucho Line; Fukutoshin Line; ; Tokyu Corporation Toyoko Line; ; Yokohama Minatomirai Railway Minatomirai Line; ;
On-board services
Class(es)	Standard class only
Seating arrangements	Reserved seats
Technical
Rolling stock	Seibu 40000 series EMUs
Track gauge	1,067 mm (3 ft 6 in)
Electrification	1,500 V DC overhead
Route map
Route map

The S-Train is a reserved-seat Commuter Liner train service operated mainly by Seibu Railway, along with Tokyo Metro, Tokyu Corporation, and Yokohama Minatomirai Railway.