1966 Seiko Sea Lion M55 with 26 jewels caliber 6206B. The dial has a crack right at the 7:00 marker. Split day and date windows. Quickset date. The movement looks good and watch runs well though service history is unknown. Crystal and case are in good condition. If you have a dial or donor watch (movement not running) to replace the dial on this one, you will have an excellent watch. Watch is certainly wearable with the dial as is. $59 shipped in the US and Canada; elsewhere please add $10 extra. Lots of references. PayPal preferred (as GIFT!!!) please. Thank you.