Thank you for viewing. This is an early SEIKO Lord Marvel. It is 14k gold-filled. The crystal, crown, and second hand were replaced with aftermarket parts during a past overhaul, and the strap is a Morellato. I believe the overhaul was approximately 3 years ago, but I don't have a precise record, so please understand. *It is currently running well. Approximately 60 years have passed since its manufacture, so there is deterioration due to aging. Please consider purchasing if you understand this. Thank you very much.