Omega Speedmaster Moonwatch | "Hesalite Sandwich" | 42mm | Ref. 3572.50 | Card

The Omega Speedmaster Ref. 3572.50 is one of the most interesting and desirable Moonwatch variations, often referred to as the “hesalite sandwich.” It combines a hesalite crystal on the front—true to the original Moonwatch design—with a sapphire exhibition caseback, allowing you to view the beautifully finished movement inside. This hybrid setup gives you the authentic vintage look on the wrist while adding a modern collector-focused detail on the back.

Inside, it’s powered by the Omega Calibre 1863 manual-wind movement, a decorated version of the legendary 861. It delivers the same reliability and heritage tied to NASA space missions, but with enhanced finishing visible through the caseback. Produced mainly in the late 1990s to early 2000s, this reference sits right in that sweet spot between vintage and modern—offering character, usability, and collectibility all in one.

What makes the 3572.50 special is exactly that balance. You get the true Moonwatch experience, plus the ability to actually enjoy the movement—something you don’t get on standard closed-case models. It’s the kind of watch that appeals to both first-time buyers and collectors, because it delivers heritage, detail, and everyday wearability without compromise.

Condition

Please review the photos carefully for an accurate representation. Light scratches or signs of wear consistent with age and normal use may be present and do not affect functionality.

The watch presents well overall with expected wear for its age.

Technical Data

• Reference: 3572.50

• Case Diameter: 42mm

• Case Material: Stainless steel

• Bezel: Black tachymeter bezel

• Dial: Black dial

• Crystal: Hesalite (front) + sapphire display caseback

• Water Resistance: ~30–50 meters

• Bracelet: Stainless steel bracelet

• Movement: Omega Calibre 1863 manual-wind

• Power Reserve: Approximately 48 hours

• Functions: Hours, minutes, small seconds, chronograph