![SEIKO CALCULATOR Vintage automatic chronograph watch Cal 6138 Ref 6138-7000 *** LARGE DIAMETER *** Seiko Vintage watches - Watches83 SEIKO CALCULATOR Vintage automatic chronograph watch Cal 6138 Ref 6138-7000 *** LARGE DIAMETER *** Seiko Vintage watches - Watches83](https://watches83.com/50884-large_default/seiko-calculator-vintage-automatic-chronograph-watch-cal-6138-ref-6138-7000-large-diameter-.jpg)
SEIKO CALCULATOR Vintage automatic chronograph watch Cal 6138 Ref 6138-7000 *** LARGE DIAMETER *** Seiko Vintage watches - Watches83
![Sold at Auction: Seiko Calculator Automatic wristwatch chronographwith 30/60-minute counter, 12-hour counter, day of the week (German/English) and date, Sold at Auction: Seiko Calculator Automatic wristwatch chronographwith 30/60-minute counter, 12-hour counter, day of the week (German/English) and date,](https://image.invaluable.com/housePhotos/Kloter/05/742005/H21511-L319779150.jpg)
Sold at Auction: Seiko Calculator Automatic wristwatch chronographwith 30/60-minute counter, 12-hour counter, day of the week (German/English) and date,
![Bonhams : Seiko. A Stainless Steel Automatic Calendar Chronograph Bracelet Watch, 'Calculator Cursor', Ref.6138-7000, No.254681 Bonhams : Seiko. A Stainless Steel Automatic Calendar Chronograph Bracelet Watch, 'Calculator Cursor', Ref.6138-7000, No.254681](https://images3.bonhams.com/image?src=Images/live/2020-09/25/24979231-64-1.jpg&height=430&quality=90)
Bonhams : Seiko. A Stainless Steel Automatic Calendar Chronograph Bracelet Watch, 'Calculator Cursor', Ref.6138-7000, No.254681
![Seiko Calculator C359-5000 Vintage Digital Watch, Men's Fashion, Watches & Accessories, Watches on Carousell Seiko Calculator C359-5000 Vintage Digital Watch, Men's Fashion, Watches & Accessories, Watches on Carousell](https://media.karousell.com/media/photos/products/2023/8/18/seiko_calculator_c3595000_vint_1692347656_36039772.jpg)