This is a catch and release of a vintage linen dial Seiko Lord Matic, ref. 5601-9000. Original listing is here. Previous owner's description is accurate:

Lug-to-lug is about 42mm, and lug width is 18mm.

$275 shipped to US only. Payment via PayPal (I cover fees). Please, no trades. I've had 200+ good transactions on this and other watch forums and eBay feedback is available under the same username (where I've had 1800+ positive transactions). No returns unless the condition of the watch is materially misrepresented.