*This train does not contain a motor.
- High Grade (HG) specifications
- Among the 300 series for long trains, this vehicle is modeled after the mid-term 357-397 series, and reproduces the appearance of the vehicle with air conditioning modified to have a cooler on the roof and a generator under the floor
- The taillights are internally fitted, and reproduce the appearance of a small window at the bottom of the passenger door
- The jumper plugs and hoses at the front of the leading car are reproduced as separate parts
- The typhoon is selectable and comes in four types: shutter type, slit type, rotating type, and Niigata type
- The shading unit for the head and taillights is smaller than the small unit used in the Kiha 56-200 series Improved see-through effect around the forehead
- Blue color sheet used
- Head and tail lights and front display are equipped with a constant lighting board and ON-OFF switch
- Head and tail lights and front display are lit by white LEDs
- Headlights use color prisms to light up in a color close to incandescent light
- Front display is interchangeable and comes with printed parts "express, rapid, local (navy blue background) and (white background)"
- Car number, affiliation notation, and JR mark are selectable and transfer sheets are included
- New current collection system and black wheels used
- TN coupler (SP) standard equipment
- Compatible with Interior Lighting Kit Tomix 0733
