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
Mani Seiko Jumbo con cronografo Lume 6138 3002 6138-3000 6138-3002 3003 3005 3009 | eBay