OK, here's a neat one. This Seastar model is the predecessor to the modern PRX models. It's in worn shape with light marks all around, but runs well. However, the Spring Yoke (P#435) needs replacement. The caliber 2031 has an interesting way of changing time, and the spring yoke assists in triggering the proper settings to adjust the time. Here's how the watch should function: If you pull the crown out, you'll move the hour hand forward or backward one hour, similar to a GMT, and if you press the crown, let off, and then press in again the seconds hand will sweep advancing it and the minute hand. Currently the watch is set to change the hour, and without the lever if the crown is pressed in the seconds hand will stop, but if you pull the crown back out and then back in the time will advance as intended. Since this part is broke, I've placed a thin washer between the case and crown so that the movement will continue to tick forward without engaging the other setting. It's not an ultimate fix but it allows someone to wear the watch until the part is replaced. That being said, these don't pop-up that often. I'm seeking $250 or best offer. Let me know if you have any questions. Paypal please.