Patek Philippe Complications Calatrava Weekly Calendar 5212A 2025 NOS

Overview 

Patek Philippe's dress watch output is predominantly gold — the house reserves steel for the Nautilus and Aquanaut sports references and rarely crosses the category boundary. The 5212A-001 crosses it: a stainless steel Calatrava carrying a complication Patek had not previously offered in production form — a weekly calendar displaying day, date, and ISO week number simultaneously. That combination of an unusual case metal and a genuinely novel indication in the same reference is what positions the 5212A distinctly within the current Patek catalogue.

The case is 40mm stainless steel at 10.79mm thick — slim for a dress watch carrying three simultaneous calendar indications. The polished bezel and stepped lugs follow standard Calatrava architecture; the satin-brushed caseband introduces a finishing contrast that prevents the case from reading as purely formal. The silver opaline dial carries five centrally mounted hands — hours, minutes, day, date, and week number — with handwritten-style typography Patek developed exclusively for this reference: the font gives the week-number indication a warmth that no other Patek calendar dial carries. Chestnut brown hand-stitched calfskin strap with polished steel pin buckle.

The Calibre 26-330 S C J SE is Patek's self-winding movement housing the patented weekly calendar mechanism — a module that coordinates day, date, and ISO week number through a single integrated system rather than stacked complications. The movement beats at 4Hz with a 45-hour power reserve and uses Patek's proprietary Spiromax silicon balance spring, which provides magnetic resistance and consistent rate accuracy across temperature variation. Visible through the sapphire exhibition caseback.

The 5212A's steel case has made it consistently more accessible than comparable complications in gold — both at retail and on the secondary market — while carrying the same Patek finishing standard and movement specification. The NOS designation here means unworn with condition verified. At RM140,500 against an RRP of RM193,000, the entry is approximately 27 percent below retail on a current-catalogue reference that Patek continues to produce in limited allocation. New old stock, unworn, complete with box and papers dated November 2025, at RM140,500.

Specifications

Brand :	Patek Philippe
Model Name :	Complications Calatrava Weekly Calendar
Reference :	5212A-001
Material	Steel
Movement :	Patek Calibre 26‑330 S C J SE, 45 Hours PR
Case Diameter :	40mm
Bracelet / Strap :	Calfskin Leather
Features :	30m depth rating, Weekly calendar. Day and week number by hands. Date in an aperture. Sweep seconds hand.

Condition

New Old Stock, Unworn, Complete Original Set with Box and Papers dated November 2025.

Warranty

2 year original Manufacturer warranty.