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![WTS] Seiko 6138-0040 Blue Bullhead vintage chronograph : r/Watchexchange](https://preview.redd.it/wts-seiko-6138-0040-blue-bullhead-vintage-chronograph-v0-cso0xtbdqqja1.jpg?width=1920&format=pjpg&auto=webp&s=ca30023cd7e3c049431fb30701c10a06ff684fdf "WTS] Seiko 6138-0040 Blue Bullhead vintage chronograph : r/Watchexchange")
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SEIKO 5 SPORTS SPEEDTIMER BULLHEAD Ref. 6138-0040 Vintage automatic chronograph watch Cal. 6138B *** BEAUTIFUL *** Seiko Vintage watches - Watches83
