BLANCPAIN Villeret: gold lady's wristwatch with complete calendar, 1990s

18k yellow gold case, white dial with Roman and Arabic numerals signed Blancpain with day-month and moon-phase indications and peripheral date, sapphire crystal. Mechanical movement with manual winding. Case back bears: Blancpain - No 622 - Atutomatic; leather strap with original gold pin buckle.
Case dimensions: 26 mm (excluding crown) x 30 mm (from lug to lug), thickness 10 mm.
Item condition grading: **** good.
Without box and papers.