Up for sale today is a [Seiko Marine Master Professional 300M Ref. SBDX023 / SLA021](https://www.gnomonwatches.com/products/marine-master-professional-300m-ref-sbdx023). This 44mm piece is in very good condition with very minor marks on the polished areas, and comes with everything that you would get new. It was purchased from Gnomon Watches in 2022. **Please see all the included photos as they are part of the item description. Feel free to ask for any additional angles you might want to see.** Price is net to me and includes insured overnight shipping via FedEx with tracking to CONUS. **Proof of ownership: https://i.imgur.com/OzEWKYH.jpeg** Asking **$1600USD** net to me. Price includes 2-day, fully insured, shipping via FedEx in CONUS. -- -- **Pictures: https://imgur.com/a/3YrIu5C** -- -- Wire payment or BoA transfers preferred but will accept PayPal from established members with references. Face to face in the Bay Area are welcome! Please let me know if you have any questions or would like to see any other angles. Thanks!! >PS: As always, feedback about me from previous transactions here on r/watchexchange and [WUS](http://forums.watchuseek.com): **https://www.reddit.com/r/WatchExchangeFeedback/comments/5r4gbz/running_list_of_feedback_for_uranxoren/**