Vintage SEIKO LM 5606-7089 men’s automatic watch day/date 25Jewels

The vintage Seiko (Lord Matic) 5606-7089 is a premium, mid-tier dress watch. The 5606 architecture was so fundamentally accurate and robust that Seiko later used it as the core blueprint to build the high-beat automatic movements found in King Seiko (56KS) and Grand Seiko models.