====== Patek Philippe Annual Calendar Regulator 5235 ====== {{wst>image_cr|Patek Philippe|Annual Calendar Regulator 5325-50R-001}} The **Annual Calendar Regulator Ref. 5235** is a wristwatch by [[Patek Philippe]]. [[Annual Calendar]] with [[regulator]] design and a two-tone dial in graphite and ebony-black with a vertical satin finish. For the [[manufacture movement]] [[PP 31-260|31-260 REG QA]] incorporates a Pulsomax® escapement and a Spiromax® balance spring in Silinvar® – both developed by the “[[Patek Philippe Advanced Research]]” department. **Reference:** * 5325-50R-001 [[Rose gold]] **Movement: ** * [[Self-winding]] [[manufacture movement]] [[PP 31-260|31-260 REG QA]], 23,040 A/h * 22K gold off-center [[minirotor]] * [[Pulsomax]]® escapement, [[Gyromax]]® balance, [[Spiromax]]® balance spring * 31 [[jewels]] * 313 parts * [[Power reserve]] 38-48 h * [[Patek Philippe Seal]] **Case:** * [[Rose gold]] * Ø 40.5 mm, H 10 mm * [[Sapphire crystal]], [[sapphire crystal]] caseback * [[Waterproof]] to 3 bar **Dial:** * Two-tone graphite and ebony black, vertical satin finish, white transfer-printed **Functions:** * Regulator-style display: hour and seconds subdials, central minutes * [[Annual Calendar]]: day, date and month in apertures **Bracelet: ** * Alligator leather with square scales, hand-stitched, matte black; [[prong buckle]] **Price: ** * 50,900 EUR (2022) {{tag>Watch_models Watches_with_annual_calendar Patek_Philippe_models Patek_Philippe_references}}