AI Appraisal Estimate

This is a sophisticated Oris Big Crown Complication wrist watch, model reference 7678, featuring an automatic Swiss movement. The timepiece is characterized by its silver-tone guilloché textured dial, which exhibits intricate patterned engraving that reflects light beautifully. The dial displays four distinct complications: a moonphase indicator at the 12 o'clock position, a date sub-dial at 9 o'clock, a day-of-the-week sub-dial at 3 o'clock, and a dual-time/24-hour sub-dial at 6 o'clock. The construction includes a robust stainless steel case with the iconic fluted or coin-edge bezel and the signature oversized 'Big Crown' designed for easy adjustment. The hands are cathedral-style with luminous fill, complemented by applied Arabic numerals and arrowhead indices. The watch is mounted on a black leather strap with an alligator grain pattern. Condition is described as 'Near Mint,' and visually the watch shows very minimal signs of wear; the sapphire crystal appears clear, the polished and brushed surfaces of the case maintain a high luster, and the dial remains pristine without any discoloration. This model represents a transition in modern Oris design, blending traditional pilot watch aesthetics with high-end horological complications. The 'Swiss Made' hallmark at the bottom of the dial confirms its origin and manufacturing standards.

I have conducted a thorough visual examination of this Oris Big Crown Complication Moonphase, reference 7678. The timepiece displays all the correct horological hallmarks of an authentic Oris, including the signature coin-edge bezel, cathedral hands, and the specific guilloché pattern consistent with this reference number. The 'Near Mint' condition is supported by the crispness of the applied indices and the lack of visible oxidation or scratching on the stainless steel case or sapphire crystal. The presence of the original box significantly enhances its collectibility and market appeal. Current market trends for Oris Complication models remain strong, as they offer some of the most accessible Swiss-made mechanical moonphase movements available. Comparable sales for reference 7678 in Japan and international markets typically range between $1,000 and $1,500 depending on the presence of papers and the condition of the leather strap. Its primary value driver is the blend of pilot watch utility with sophisticated dress complications. My valuation acknowledges the high 'Near Mint' state but remains conservative as the movement's service history is unknown. Note that a visual inspection via imagery cannot definitively confirm the integrity of the automatic movement or the authenticity of internal components. A full authentication would require an in-person physical inspection by a certified watchmaker to verify the caliber 754/781 movement, testing of the water resistance seals, and verification of original purchase documentation or service records to establish a complete provenance.