The watch is in fair vintage pre-owned condition. The Swiss 17-jewel manual-winding mechanical movement is fully functional and keeping accurate time. The double-sided skeleton design is clean and beautifully displays the visible gears, springs, and mechanical components through both the transparent front crystal and see-through case back. The stainless steel case and case back show visible signs of wear consistent with age and previous use, including some discoloration or stain-like marks that have developed over time. These cosmetic imperfections reflect the watch's vintage character without affecting its performance. Overall, this Waltham Monaco remains a fully functional and distinctive mechanical skeleton timepiece, ready to wear and backed by a 1-year warranty.