I have a vintage Seiko 7T42 6A00 which I've had from new (1986). It's been stuck in a drawer for ages so I dusted the old girl off, and replaced the battery. However, there's not a peep out of her, the second hand hasn't budged one single notch. The battery is a brand new LR927 punching out 1.54v, and yes, I've shorted out the AC and +ve side of the battery, all to no avail. The battery contacts are all clean & shiny, and bent in the correct positions. Is there anything else 'simple' I can try as to be honest, I'm at the end of technical knowledge now. Or, has the old girl simply had her time?