Rare Vintage Du Bois & Fils "Edition 1785" Triple Calendar Moonphase – Limited Edition 40mm Overview Up for sale is a beautiful and highly collectible timepiece from Philippe Du Bois & Fils, the oldest watch factory in Switzerland (established in 1785). This elegant Triple Calendar Moonphase watch beautifully blends classic mid-century aesthetics with traditional Swiss watchmaking complications. This model is a strictly Limited Edition, with this specific piece being numbered No. 367 out of only 999 ever produced worldwide. Dating back to the early 1990s, it is a perfect daily dress watch for collectors who appreciate exclusivity and heritage. Specifications Brand: Philippe Du Bois & Fils Model/Reference: Edition 1785 / Triple Calendar Moonphase Movement: Swiss Automatic, 21 Jewels (Premium ETA 2892-A2 base with a calendar module) Limitation: No. 367 / 999 Complications: Day and Month windows (in German: e.g., DON / DEZ) Pointer Date (outer track indicated by the central hand with a red arrow tip) Moonphase indicator at 6 o'clock Case: Yellow gold-plated with a polished finish and elegant coin-edge style profile detailing Dial: Silver-white sunburst dial with applied gold-tone Arabic numerals and indices Crystal: Sapphire crystal Case Back: Solid screw-down case back Water Resistance: 5 ATM (50 meters) Lug Width: 22mm Condition Case & Bezel: Good vintage condition with light, natural hairline scratches and minor signs of wear consistent with age, but no major dents. The gold plating remains bright and intact. Dial & Hands: Absolutely pristine. The hands, moonphase disc, and date markers are perfectly preserved. Movement: Clean and running smoothly. The automatic rotor winds efficiently, and all quick-set pushers on the side of the case operate perfectly. Strap: Fitted on a brand-new, aftermarket dark brown alligator-grain leather strap with a gold-tone buckle that complements the watch perfectly