For sale here is a Tritium Dial Omega Speedmaster Professional Moonwatch 3572.50, fully serviced in Jan 2019. This discontinued model has a hesalite crystal in the front, and a sapphire display caseback. Unlike most of the 3572.50s that used the super luminova dial and the rhodium plated silver Calibre 1863, this example is the “transitional” model from the earlier 3592.50 that has the tritium dial and a gold (Gilt plated) 863 movement. Omega made it for about 1 year. The only difference between this one and the earlier 3592.50 is the engraving in the back, where the 3592.50 says “Speedmaster Apollo XI”, and this 3572.50 says “Speedmaster Professional”. In the book Moonwatch Only it was referred to as the “Professional Yellow”: https://omegaforums.net/threads/speedmaster-3572-50-with-caliber-863.81940/#post-1050827 Specs: Year: 1998 (Based on the 48355XXX Serial Number) Ref: 3572.50 Material: Stainless Steel Crystal: hesalite Case back: Sapphire Display back Movement: Gilt Plated Cal. 863 Diameter: 42mm Accessories: None, sold as watch (and straps) only Conditions: Movement: The watch has been trough a full service by the Omega certified watchmaker Son Nguyen at World Time in San Jose in Jan 2019, cost me $750. Please see the pictures below for the complete breakdown of all parts during the service, and the timegrapher test results before and after the service. One of the pusher was replaced with genuine Omega parts. Son Nguyen has the Omega part account and has been recommended by many OFers locally, for example: https://omegaforums.net/threads/recommended-watchmaker-in-bay-area-california.12253/#post-141307 https://omegaforums.net/threads/san-francisco-san-jose-omega-watch-repair-and-service.48650/ World Time does not provide service papers, but instead keeps internal records based on the watch's serial number for their service. They offer a 3 year warranty, which means this watch is still under that coverage for the next 2.5 years. Their website is below, feel free to call them and confirm about their service and warranty based on the full serial number (i'll provide upon request): https://www.yelp.com/biz/world-time-san-jose Dial: Clean and flawless. Crystal: Omega original and in excellent condition. Case: Some scratches and dings but overall in good condition. Bezel: Some dings/scratches (notably a ding at the edge near 5 o'clock). A touch of blue patina under the light. Bracelet: The watch originally was sold with a strap. The original Omega strap and buckle was included in the package but obviously the leather has been worn out and hardened. I'm selling it on a leather zulu strap. Asking Price: $3,700 Shipped using 2nd day shipping in CONUS (prefer US sales at this point). If buyer request faster shipping additional costs will be covered by buyer. Face to Face available in SF Bay Area. Payment terms are Paypal F&F or bank wires for the asking price. Paypal G&S is accepted but fee is on buyer. Return Policy: Returns accepted within 48 hours no questions asked, shipping cost on buyer. However items need to be in exactly the same condition, case back CANNOT be opened. References: https://omegaforums.net/threads/great-transaction-with-robinhook.98204/ https://omegaforums.net/threads/great-transaction-with-robinhook.97938/ https://omegaforums.net/threads/robinhook-is-a-great-seller.96133/ https://omegaforums.net/threads/robinhook-is-a-fantastic-seller.96012/ https://omegaforums.net/threads/robinhook-is-a-great-seller.93725/ https://omegaforums.net/threads/robinhook-is-great-to-deal-with.94369/ https://omegaforums.net/threads/positive-feedback-for-robinhook.94665/ https://omegaforums.net/threads/superb-transaction-with-robinhook.95041/ https://omegaforums.net/threads/robinhook-is-a-great-seller.95223/ Please look at photos below for condition. (click on photos for higher resolution). Thank you for your interest!