The Seagull 1963 Wind Chaser series adopts the ST1901 movement, inheriting the lineage of the Seagull 1963 Original Edition. The transparent caseback fully reveals the mechanical beauty of the ST1901 movement and the engraved words on it-- “天津手表厂” (Tianjin Watch Factory) and “空军” (Air Force), making it a timeless masterpiece. Drawing inspiration from the flight watch design blueprints in the Seagull Watch Museum's collection, it carries on the aviation spirit of the Seagull 1963 Original Edition - with a purely tough, retro style.