- Year
- 2026
- Condition
- Unworn
- Set
- Box and papers
- Movement
- Self-winding
- Size
- 40 mm
Set and condition
Complete set
This Complications Calatrava Weekly Calendar is accompanied by its original presentation box, warranty card and supporting documentation. The watch and included items are inspected by an expert watchmaker before sale. Additional photographs and video of this piece are available on request.
Original presentation box
Original presentation box and packaging.
Original papers
Warranty card and supporting documentation.
Inspected prior to sale
Reviewed for condition, completeness and functionality. Additional details and photographs are available on request.
Condition photography
Additional close-up images of specific areas are available before purchase.
Overview
The week number, on a steel Calatrava
The Patek Philippe Complications Calatrava Weekly Calendar, reference 5212A-001, in steel with a silvery opaline dial, charcoal grey white gold 'obus'-style markers and dauphine-style hands, on a hand-stitched light brown calfskin strap. Self-winding calibre 26-330 S C J SE showing the week number, day and date; 40 mm, 10.79 mm high.
The reference 5212A-001 is Patek Philippe's Calatrava Weekly Calendar, a self-winding watch that shows the number of the current week alongside the day and date, in the Complications collection. The case is steel, which Patek Philippe notes as rare on a Patek Philippe complication, round and Calatrava-style, 40 mm across and 10.79 mm high, with a two-tier case and lugs. The dial is silvery opaline with faceted 'obus'-style hour markers and dauphine-style hands in charcoal grey white gold, and its calendar text is transfer-printed in a typeface Patek Philippe says was created from handwritten figures and letters, a reference to notes kept in paper diaries. It comes on a hand-stitched light brown calfskin strap with a steel prong buckle.
The calibre 26-330 S C J SE is a self-winding movement with a 21K gold central rotor, built for a display Patek Philippe calls an original complication: the day and the week number are shown by hands, with the corresponding month, and the date sits in an aperture, with sweep seconds from the centre. It measures 27 mm across and 4.82 mm high, with 304 parts and 50 jewels, runs at 28,800 semi-oscillations an hour on a Gyromax® balance with a Spiromax® balance spring, has a power reserve of 35 to 45 hours, and carries the Patek Philippe Seal. The sapphire crystal case back shows it.
For collectors
The week number is the point: Patek Philippe ties it to the notes kept in paper diaries, and this is the reference the brand built it into. The dial's handwritten-style typography was drawn for this watch, according to Patek Philippe, which makes the printing as specific to the reference as the calendar itself.
Key details
Design and engineering
- Steel Calatrava caseRound, 40 mm across and 10.79 mm high, with a two-tier case and lugs; Patek Philippe notes steel as a rare choice for a Patek Philippe complication. Sapphire crystal case back, water-resistant to 30 m.
- Weekly calendarDay and week number by hands, with the month corresponding to each week, and the date in an aperture; sweep seconds. Patek Philippe presents the week number as the complication's original element.
- DialSilvery opaline, with faceted 'obus'-style applied hour markers and faceted dauphine-style hands in charcoal grey white gold; the date, day, month and week number are transfer-printed in a typeface Patek Philippe says was created from handwritten figures and letters.
- Strap and buckleHand-stitched light brown calfskin, closed by a steel prong buckle.
Calibre 26-330 S C J SE
- Self-winding, 21K gold central rotor
- Weekly calendar: day and week number by hands, date in an aperture; sweep seconds
- 27 mm across, 4.82 mm high; 304 parts, 50 jewels
- 28,800 semi-oscillations per hour (4 Hz), Gyromax® balance, Spiromax® balance spring
- Power reserve 35 to 45 hours
- Patek Philippe Seal
The reference
Technical specifications
| Reference | 5212A-001 |
|---|---|
| Collection | Complications |
| Calibre | Caliber 26-330 S C J SE |
| Movement | Self-winding |
| Functions | Weekly calendar, Day and week number by hands, Date in an aperture, Sweep seconds |
| Case dimensions | 40 mm |
| Case thickness | 10.79 mm |
| Case material | Steel |
| Case back | Sapphire crystal case back |
| Water resistance | 30 m |
| Dial | Silvery opaline, charcoal gray white gold applied faceted "obus"-style hour markers |
| Strap | Calfskin, hand-stitched, light brown |
| Clasp | Steel prong buckle |
| Jewels | 50 |
| Power reserve | min. 35 hours – max. 45 hours |
| Frequency | 28,800 semi-oscillations/hour (4 Hz) |
Buying with HYPA
Purchase with confidence
- Original warranty card included, dated 2026
- Free insured delivery within Australia · international quoted
- Payment by bank transfer
- Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
- Rated 5.0 on Google · 6 reviewsFrom clients of HYPA International on Google. Read the reviews
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