Here are my Casio Skywalker (DW401) and Surfing Timer (DW403 ). One of the most interesting chronograph dials ever and useful speed timing functions.... | By The Crown and Bezel | Facebook
Casio DW-400 Tachy Meter “skywalker” - YouTube
Rare Vintage Casio Sky Walker DW-401 Timecop for sale online | eBay
Casio "Skywalker" DW401 : r/casiovintage
Rare Vintage Casio Sky Walker DW-401 Timecop for sale online | eBay
Casio Skywalker DW-401/20BAR Vintage Chronograph Tachymeter Mens | WatchCharts