Patek Philippe
Patek Philippe Moonphase 7121/1J-001
The Patek Philippe Moonphase (reference 7121/1J-001) is a 33 mm 18k yellow gold watch with a cream dial. It runs on the manual caliber 215 PS LU with a 44-hour power reserve and is water resistant to 30 m.
Specifications
Case
- Reference
- 7121/1J-001
- Collection
- Complications
- Case size
- 33 mm
- Thickness
- 8.35 mm
- Case material
- 18k yellow gold
- Case shape
- Round
- Crystal
- Sapphire
- Water resistance
- 30 m
- Bracelet / strap
- 18k yellow gold bracelet
Dial and bezel
- Dial
- Cream
- Bezel
- Diamond-set
Movement
- Movement
- Manual
- Caliber
- 215 PS LU (base 215)
- Power reserve
- 44 hours
- Frequency
- 28,800 vph
- Functions
- Small seconds, Moon phase
How it compares within the Complications family
Side by side with other references in the same collection, from the catalog.
| Reference | Size | Material | Dial | Caliber | Years |
|---|---|---|---|---|---|
| 7121/1J-001 (This watch) | 33 mm | 18k yellow gold | Cream | 215 PS LU | — |
| 4947/1A-001 | 38 mm | Stainless steel | Blue | 324 S QA LU | 2021– |
| 5205R-011 | 40.2 mm | 18k rose gold | Olive green | 26-330 S QA LU 24H | 2022– |
| 5230P-001 | 38.5 mm | Platinum | Blue | 240 HU | 2022– |
| 5370R | 41 mm | Rose gold | Brown | CHR 29-535 PS | 2025– |
| 5396G-017 | 38.5 mm | 18k white gold | Blue gradient | 26-330 S QA LU 24H | 2024– |
| 5905/1A-001 | 42 mm | Stainless steel | Olive green | CH 28-520 QA 24H | 2021– |
| 5924G | 42 mm | White gold | — | CH 28-520 C FUS | 2023– |
| 5935A-001 | 41 mm | Stainless steel | Salmon | CH 28-520 HU | 2022– |
About the Complications family
Complications is Patek Philippe's catalog heading for useful everyday functions that stop short of the grand complications. It covers the annual calendar, which Patek introduced in 1996 with ref. 5035 and which needs correcting only once a year, the World Time with its city ring, Travel Time models with two hour hands, chronographs, moon phases and alarms.
References in the catalog include annual calendars such as the 5205 and 5396, World Times such as the 5230 and the enamel-dial 5231, and the Calatrava Pilot Travel Time models. Calibers include versions of the 240, 324 and 26-330 families. For dealers the exact reference and dial variant matter most, as the same function often comes in several metals and dial colours that trade differently.
Quick answers
- What size is the Patek Philippe Moonphase 7121/1J-001?
- The Patek Philippe Moonphase 7121/1J-001 has a 33 mm case, 8.35 mm thick.
- What movement does the Patek Philippe Moonphase 7121/1J-001 use?
- It uses the manual caliber 215 PS LU, with a 44-hour power reserve.
- How water resistant is the Patek Philippe Moonphase 7121/1J-001?
- It is water resistant to 30 metres.
- What is the Patek Philippe Moonphase 7121/1J-001 made of?
- The case is 18k yellow gold. Bracelet or strap: 18k yellow gold bracelet.
Catalog facts checked September 2026.