- The limited express trains "Thunderbird" and "Shirasagi," heading towards the Hokuriku region, will have their operations modified to extend only to Tsuruga from March 2024, coinciding with the opening of the Tsuruga extension of the Hokuriku Shinkansen. As a result, changes have been observed in the trains' operating fleet, with the 683 series 0-subseries six-car set being repainted in the "Shirasagi" color scheme and operating from December of the same year.
- Model representation of the W35 formation belonging to the Suita General Vehicle Office Kyoto Branch.
- Reproduction of the exterior with added orange stripes, with the "Thunderbird" illustration that spanned cars 2 and 3 removed.
- Reproduction of the safety belt hook on the front of the gangway leading car.
- Head/Tail lights illumination utilizing bulb-colored LED. KUHA683 features a light-off switch.
- Slotless motor adoption achieves smooth and quiet running performance.
- Destination display stickers included.
- The front coupling section of the gangway leading car uses KATO couplers close-coupled type (without hook) with electric connection included. Equipped with an electric connection (two-tier) and coupler cover for KUHA683. The front of KUHA683 uses a dummy coupler.
- The middle coupling section comes standard with body-mounted KATO couplers close-coupled type (with hook).
- DCC Friendly.
- Compatible with interior lighting kit Kato 11-213 (11-214)
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