Thomas' Timepieces - The Seiko LM Special was a sub-brand of the LM or LordMatic range. This particular model, so evocative of the 1970's in style, uses calibre no. 5206A with 25
SEIKO LM SPECIAL DAY-DATE FACETED CRYSTAL RED DIAL AUTOMATIC REF. 5606 – Zeit Vintage Store
Seiko Lord Matic LM Automatic Day-Date Faceted Crystal Brown... for AED750 for sale from a Seller on Chrono24
Seiko LM De Luxe 5626-8140 from 1976 – Paleh
NICE VINTAGE SEIKO LM 5606-7070 AUTOMATIC 23 JEWELS JAPAN WATCH...ALL ORIGINAL | eBay