Zeltinger Sonnenuhr represents the third major vineyard in the Prüm family's portfolio—similar in steepness to Wehlener Sonnenuhr yet distinct in soil character. The site features comparable 60–70% gradients on south-facing slopes, but with less accumulated topsoil and deeper penetration of weather-beaten grey Devonian slate. The vineyard's older vines—approximately 60–70 years established—have penetrated deep into the slate formation, concentrating ripeness despite lower soil fertility. The 2022 growing season's early warm development and sustained summer heat brought Spätlese-level ripeness to the site's privileged positions. The Prüm estate's selective harvesting in mid-September captured the vintage's balance between fruit concentration and the aromatic freshness preserved by cool nights, a critical element in maintaining the site's signature mineral character.

Zeltinger Sonnenuhr Spätlese fruit, harvested mid-September 2022, underwent pressing with characteristic gentle pressure, preserving the wine's mineral purity. Spontaneous fermentation commenced in stainless steel under the guidance of indigenous yeast populations, proceeding without external temperature control. The vintage's inherent ripeness meant fermentation progressed steadily through autumn months. Extended lees maturation—a hallmark of the estate's approach—continued through the 2022–2023 cellar year, integrating the site's slate-derived minerality with the vintage's concentrated fruit character. Spätlese designation indicates the sweet spot for food pairing: sufficient residual sweetness for balance without the higher ripeness levels of Auslese.