I have a Seiko Coutura model number SNA459 that I'm no longer wearing. I was talking to a buddy about selling it and he said it's not worth it... that it's only worth about $50. I just find that hard to believe. It's in excellent shape so it's not a condition issue. Are the resale values on these watches (and Seikos in general) that bad? I'm not trying to sell the watch here, I'm just trying to get an understanding of how well Seikos hold their value. Thanks.