"Craft a submark logo that embodies casual luxury with a nod to vintage Americana. The logo should feature a circular pendant as its boundary, encapsulating a cursive 'U' at its core, symbolizing the brand's unique identity. Render the entire design in black against a white background to ensure stark contrast and timeless elegance. Incorporate a distressed texture to the elements, suggesting a well-loved, vintage quality that adds depth and character to the logo. Despite its simplicity, the logo should convey a sense of understated elegance, emphasizing craftsmanship and the timeless design inherent in the brand's ethos."