For sale (**$3,575 OBRO**) have my genuine Omega Seamaster Professional 300M Chronometer, Reference 2230.50.00 (also known by many as the Non AC Dial Seamaster Professional). This particular model comes from factory with a 18K white gold bezel insert just like the limited edition Omega Seamaster Americas Cup 2533.50 but with the standard dial wording of the 2254.50.00 (hence the nickname non AC Dial) but with raised Omega symbol and metal index markers, giving it a very nice look (only Seamaster from this era to have this). More details of this model can be found at: [https://www.omegawatches.com/en-us/watch-omega-seamaster-300-m-chronometer-22305000](https://www.omegawatches.com/en-us/watch-omega-seamaster-300-m-chronometer-22305000) The case has brushed sides with contrasting polished case top. The black dial and the hands have a beautiful green lume as shown; the sapphire crystal is in very good conditions. The original 1610/930 Speedmaster style bracelet h measures approximately 7 inches so should fit at least a 7 1/2 inch wrist when installed on the watch head (comes with 2 half links, which help a lot in fine tuning the length / centering the clasp in your wrist; has some swirls and marks as shown and very little stretch as shown.) The watch runs on the trustworthy Omega caliber 1120 movement. The watch was serviced by Omega in 2022 (paperwork included); on my timegrapher, when facing up, the watch is running at +5 seconds with an amplitude of 273 and beat error of 0.0s. The watch head is in good conditions; few swirls and small marks as shown. The rotating bezel and white gold bezel insert have a few marks as shown. The back of the case shows some scratches from previous bracelet changes (not visible when wearing the watch; could be polished if desired). The watch has 2 upgrades (done by my watchmen, pressure tested after the work): OEM Planet Ocean second sweep hand and the OEM 2500D font date wheel (original second sweep hand and date wheel included). Am also including an used 2254 black bezel insert so new user can switch between both inserts and achieve 2 very nice looks ! **Included with the watch head are:** 1- Good conditions 20 MM Omega Speedmaster style bracelet, reference 1610/930. 2- New style Omega wood box with watch holding pillow and pouch. 3- Original Omega warranty card (unfilled). 4- Omega Operating instruction booklets. 5- Omega chronometer certificate (matching serial number with watch set). 6- Receipt from original AD (dated September 2017). 7- Omega service paperwork (dated April 2022). 8- Omega hang tag ((matching serial number with watch set). 9- Original Omega 2230.50.00 date wheel. 10- Original Omega 2230.50.00 second sweep hand. 11- Omega 2254.80 black bezel insert. Price listed are NET and includes shipping through USPS mail anywhere in the USA;. myself and the watch set are located in Puerto Rico (USA), so no import fees to the USA mainland. Payment by Paypal, Venmo or Apple Cash. I have positive transactions here and over 150 positive transactions at Watchuseek (WUS) and some more at The Rolex Forums (TRF), all under the same user name, so feel free to check them out. Also 100% positive feedback in over 1,300 transactions on Ebay under the same user name. Additional references available upon request. [Timestamp](https://imgur.com/bBzlPrK)