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The Omega Speedmaster Professional 3592.50 is a manual-wind Speedmaster from the 1990s, best known for pairing a decorated Caliber 863 with a sapphire display back. It is not a single unchanging specification: documented examples differ in movement finish and jewel count, and lume can vary with production period. Check the individual watch rather than relying on a seller’s broad year-based description.
What is the Speedmaster Professional 3592.50?
The 3592.50 is a stainless-steel Speedmaster Professional with a black dial, tachymeter bezel and a sapphire caseback that reveals its hand-wound Caliber 863. A dealer-archived example from circa 1991 has an acrylic front crystal and a 42 mm case, but those details should be confirmed on the specific watch being considered. Fratello’s reference history places the 3592.50 in the late-1980s transition to display-back Speedmasters; a dealer archive entry documents one particular 1991 example.
How did Caliber 863 change?
Caliber 863 is the decorated movement associated with this display-back reference, but its appearance and stated jewel count are not uniform across all examples. Fratello describes copper-finished early movements and a later gilt or yellow finish. Examples documented by the dealer and Sotheby’s catalogue include both 17-jewel and 18-jewel descriptions. The 1995–1997 style is described by Fratello as having 18 jewels rather than 17; do not infer the count from an approximate production year alone.
Use the movement in the watch as the evidence: inspect its caliber marking, finish and jewel-count engraving, and compare those details with the serial and documentation. Sotheby’s catalogue descriptions provide another specimen-level record of a 3592.50 with a hand-wound 863 and sapphire display back, including an 18-jewel example.
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- Stainless steel case
- Black dial
- Swiss-automatic movement
- Case diameter: 40mm
- Water resistant to 330 feet
Where does the 3592.50 sit in Speedmaster history?
Fratello’s chronology places the 3592.50 after the numbered reference 345.0808, with early numbered examples, Apollo XI-engraved watches and later unnumbered examples. This is useful context, not proof of any individual watch’s year or provenance. For a specific piece, check its serial and papers and seek Omega archive information where available.
Fratello dates the move to later 357x.50 references, Calibers 1861 and 1863, and Super-LumiNova to 1997. The 3572.50 is the later display-back comparison; the 3573.50 is a similar display-back model with sapphire on the dial side. These references can help frame a choice between a Caliber 863 watch and later Speedmasters, but confirm the components on the actual candidate rather than assuming every example matches a broad model summary.
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What should you check before buying a 3592.50?
- Movement: Confirm the caliber marking, finish and jewel count on the movement itself. Ask for service records and have operating condition assessed by an independent watchmaker.
- Dial and hands: Establish the lume material and check whether dial and hand lume appear consistent. Fratello reports tritium on earlier examples and a move to Super-LumiNova around 1997; its buying guidance highlights checking whether the hands retain original tritium. Do not determine lume material solely from an approximate year.
- Case, crystal and back: Look for excessive polishing or damage, identify the front crystal type, and inspect the sapphire display back and its engraving. The documented circa-1991 dealer example has an acrylic front and sapphire rear.
- Bezel and bracelet: Check bezel correctness and whether the bracelet and end links fit the watch. The archived dealer example is listed with Omega bracelet 1479/812, but that is one configuration, not a universal bracelet specification.
- Identity and provenance: Compare serials across the watch and paperwork, and review any claimed production or delivery information. The dealer reports that the Omega Museum identified its individual 1991 example as produced in 1991 and delivered to Japan; that report does not establish the history of other watches.
- Completeness: Record whether box, papers and service documentation are present. Their effect on desirability is individual, and no current premium is established here.
What does a 3592.50 cost?
The only specific price observation in the cited coverage is historical: in an article published August 4, 2020, Fratello said a good early-to-mid-1990s 3592.50 was being offered for around €5,000, with condition and box or papers affecting the price. That is an asking-price observation from 2020, not a completed-sale result or a current valuation. Assess present listings individually; a listing alone does not establish authenticity or market value.
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