SEIKO 5 SPORTS SPEEDTIMER BULLHEAD Ref. 6138-0040 Vintage automatic chronograph watch Cal. 6138B *** BEAUTIFUL *** Seiko Vintage watches - Watches83
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Seiko Chronograph 'Bullhead' 6138-0040. Superb original example. 1977. – Century Time Watches
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SEIKO BULLHEAD 1976 Vintage automatic chronograph watch Cal. 6138B Ref. 6138-0040 JAPAN J *** IMPRESSIVE CONDITION *** Seiko Vintage watches - Watches83
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Seiko Bullhead Chronograph NOS 6138-0040
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FSOT : SEIKO 6138 0040 Bullhead Chronograph : SSC021P1 Solar Diver : SKX Mod 6217 62MAS Homage | WatchUSeek Watch Forums
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1977 Seiko Bullhead Chronograph cal. 6138 ref. 6138-0049 or 6138-0040 black dial - TIMELINE.WATCH collection
