![SEIKO CALCULATOR SLIDE RULE Vintage automatic chronograph watch Cal. 6138 Ref. 6138-7000 + BOX *** SPECTACULAR CONDITION *** Seiko Vintage watches - Watches83 in 2023 | Vintage watches, Chronograph watch, Vintage seiko watches SEIKO CALCULATOR SLIDE RULE Vintage automatic chronograph watch Cal. 6138 Ref. 6138-7000 + BOX *** SPECTACULAR CONDITION *** Seiko Vintage watches - Watches83 in 2023 | Vintage watches, Chronograph watch, Vintage seiko watches](https://i.pinimg.com/736x/1a/f1/5b/1af15b27df74048b665d3f8f961e050e.jpg)
SEIKO CALCULATOR SLIDE RULE Vintage automatic chronograph watch Cal. 6138 Ref. 6138-7000 + BOX *** SPECTACULAR CONDITION *** Seiko Vintage watches - Watches83 in 2023 | Vintage watches, Chronograph watch, Vintage seiko watches
![SEIKO CALCULATOR SLIDE RULE Vintage automatic chronograph watch Cal. 6138 Ref. 6138-7000 + BOX *** SPECTACULAR CONDITION *** Seiko Vintage watches - Watches83 SEIKO CALCULATOR SLIDE RULE Vintage automatic chronograph watch Cal. 6138 Ref. 6138-7000 + BOX *** SPECTACULAR CONDITION *** Seiko Vintage watches - Watches83](https://watches83.com/69698-thickbox_default/seiko-calculator-slide-rule-vintage-automatic-chronograph-watch-cal-6138-ref-6138-7000-box-spectacular-condition-.jpg)
SEIKO CALCULATOR SLIDE RULE Vintage automatic chronograph watch Cal. 6138 Ref. 6138-7000 + BOX *** SPECTACULAR CONDITION *** Seiko Vintage watches - Watches83
![Seiko Rare Calculator Slide Rule Vintage Automatic Chronograph... for $2,558 for sale from a Trusted Seller on Chrono24 Seiko Rare Calculator Slide Rule Vintage Automatic Chronograph... for $2,558 for sale from a Trusted Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/25336892-jdasqxes2lu7duicfhgpqy86-ExtraLarge.jpg)
Seiko Rare Calculator Slide Rule Vintage Automatic Chronograph... for $2,558 for sale from a Trusted Seller on Chrono24
![A Calculated Risk - Project Restoration/Build - 72 Seiko 6138-7000 Slide Rule Chronograph | The Watch Site A Calculated Risk - Project Restoration/Build - 72 Seiko 6138-7000 Slide Rule Chronograph | The Watch Site](https://i.imgur.com/QhXSivp.jpg)