Seiko 6138-3000 for AU$1,565 for sale from a Private Seller on Chrono24
Seiko] One of Seiko's greatest - the 6138-3009 automatic chronograph : r/ Seiko
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 6138-3000/9 crystal replacement | The Watch Site