![Seiko Automatic Chronograph Jumbo 6138-3002 / 42MM / Black... for $865 for sale from a Trusted Seller on Chrono24 Seiko Automatic Chronograph Jumbo 6138-3002 / 42MM / Black... for $865 for sale from a Trusted Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/25299651-t85vm3490wf0hr2dj30ladi0-ExtraLarge.jpg)
Seiko Automatic Chronograph Jumbo 6138-3002 / 42MM / Black... for $865 for sale from a Trusted Seller on Chrono24
Thomas' Timepieces - Seiko 6138-3000 and 6138-3002, both models often referred to as the Seiko Jumbo. The Seiko 6138 was arguably the world's first automatic chronograph (Zenith/Movado El Primo also claimed to
![Seiko SUPER RARE SEIKO 6138-3002 AKA Jumbo AUTOMATIC CHRONOGRA... for $746 for sale from a Private Seller on Chrono24 Seiko SUPER RARE SEIKO 6138-3002 AKA Jumbo AUTOMATIC CHRONOGRA... for $746 for sale from a Private Seller on Chrono24](https://cdn2.chrono24.com/images/uhren/26369104-bdck97ro85hgd13fw9btrr46-ExtraLarge.jpg)