Seiko Chronograph 7T42-6A10,JA-0905| セイコー スピードマスター 7T42-6A10 美品 クロノグラフ アラーム タイマー,Seiko Chronograph 7T42-6A10 Quartz Men's Black Dial Round Analog Tachymeter Date | eBay,7T59-F010] The world's first ever 1/100th of a second Chronograph. Made in 1992 and costing $2,200 on release! It's ugly but I love it : r/Seiko,1990's Seiko 7T59 6A00 Watch 1/100