For sale here is a 1998 (warranty card date) Omega Speedmaster Professional Moonwatch 3572.50 "Hesalite Sandwich" with warranty card. This discontinued model has a hesalite crystal in the front, and a sapphire display caseback, showing a gorgeous Caliber 1863. This example is one of the early productions of this model, transitioning from the earlier 3592.50, it comes with a tritium dial. The lume has not shown any obvious patina yet, which means the next owner will have the opportunity to observe the patina to develop. Specs: Year: 1998(Based on the warranty card date) Ref: 3572.50 Dial: Clean and flawless tritiun dial Material: Stainless Steel Crystal: Hesalite Case back: Sapphire Display back Movement: Cal. 1863 Diameter: 42mm Accessories: Stamped Warranty Card Conditions: Movement: - +10.3s/day average. - Amplitude is 282 average based on my phone app timegrapher. - Chronograph functions flawlessly. - The movement does not need an immediate service. However service history is unknown. Dial: Clean and flawless. Crystal: Omega original and in excellent condition. Case: Lightly polished but overall in excellent condition. Bezel: Overall in good condition. Bracelet: Omega 1499 bracelet with 842 endlinks. Measured to fit up to 8' wrist. Bracelet is polished and overall in excellent condition. Asking Price: $3,800 Shipped 2nd day 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/oh-happy-day-bought-my-first-speedy.99800/#post-1301411 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!