該產品於 2009 年由陳峙達 CHIH TA CHEN 設計,並交由彰化的工廠合作製造,採用 2 毫米和 4 毫米兩種規格的直紋滾花紋理,並拆解了徠卡快門機構,對其螺紋進行了逆向工程,以確保創造出盡可能完美無瑕的螺紋精度,側邊滾花靈感源自快門速度轉盤的菱形紋理和弧形邊緣。
DESIGNED BY CHIH TA CHEN IN 2009 AND MANUFACTURED IN COLLABORATION WITH A FACTORY IN , CHANGHUA, THIS PRODUCT FEATURES STRAIGHT KNURLING IN BOTH 2MM AND 4MM SPECIFICATIONS. THE LEICA SHUTTER MECHANISM WAS DISASSEMBLED AND ITS THREADS WERE REVERSE-ENGINEERED TO ENSURE THE CREATION OF THE MOST FLAWLESS THREAD PRECISION POSSIBLE. THE SIDE KNURLING WAS INSPIRED BY THE DIAMOND PATTERN AND CURVED EDGES OF THE SHUTTER SPEED DIAL.