Seiko Y434-5250 Watch Guide The Seiko Y434-5250 is a watch model based on the Y434 movement.Parts ListBA2N99AN00crystal35E09NN1crown - crownOther models with the same movementY434-5000Y434-5010Y434-5020Y434-5030Y434-5040Y434-5050Y434-5060Y434-5070Y434-5080Y434-5090Y434-5100Y434-5110Y434-5120Y434-5130Y434-5140Y434-5150Y434-5160Y434-5170Y434-5180Y434-5190Y434-5200Y434-5210Y434-5220Y434-5230Y434-5240Y434-5260Y434-5270Y434-5280Y434-5290