Seiko VD78-X002 Watch Guide The Seiko VD78-X002 is a watch model based on the VD78 movement.Other models with the same movementVD78-X003VD78-X004VD78-X013VD78-X014VD78-X016VD78-X017VD78-X018VD78-X019VD78-X020VD78-X023VD78-X027