Seiko Caliber Y131 No technical information found for this movement.Watches with the Y131 movementY131-0010Y131-0020Y131-5000Y131-5010Y131-5020Y131-5030Y131-5040Y131-5060Y131-5070Y131-5090Y131-5100Y131-5110Y131-5130Y131-5140Y131-5155Y131-5160Y131-5190Y131-5210Y131-5220Y131-5230Y131-5240Y131-5250Y131-5260Y131-5270Y131-5280Y131-5310Y131-5320Y131-5370Y131-5400Y131-5410Y131-5420Y131-5430Y131-5440Y131-5520Y131-5530Y131-5560Y131-5570Y131-5580Y131-5590Y131-5600Y131-5620Y131-5630Y131-5640Y131-5650Y131-565AY131-5660Y131-5670Y131-5680Y131-5690Y131-5700Y131-5720Y131-5730Y131-5740Y131-5750Y131-5770Y131-5780Y131-5790Y131-5810Y131-5820Y131-5830Y131-5840Y131-5850Y131-5880Y131-5890Y131-5900Y131-6000Y131-6010Y131-6020Y131-6030Y131-6040Y131-6050Y131-6060Y131-6070Y131-6080Y131-6090Y131-6100Y131-6110Y131-6120Y131-612AY131-612BY131-612LY131-612MY131-6130Y131-6150Y131-6160Y131-6170Y131-6180Y131-6190Y131-6200Y131-6210Y131-6220Y131-6230Y131-6250Y131-625AY131-6260Y131-6270Y131-6280Y131-6290Y131-629AY131-6300Y131-630AY131-6310Y131-6320Y131-635AY131-6370Y131-638AY131-6400Y131-6410Y131-641AY131-6430Y131-6440Y131-6450Y131-645AY131-6460Y131-6470Y131-647AY131-6490Y131-6520Y131-6530Y131-6540Y131-6550Y131-6560Y131-6610Y131-6630Y131-6640Y131-7000Y131-7010Y131-701AY131-701BY131-7050Y131-7060Y131-8000Y131-8010Y131-8020Y131-8030Y131-8070