The Patek Philippe Annual Calendar 5146J-010 is a classic luxury timepiece featuring a 39mm 18k yellow gold case paired with a distinctive slate grey sunburst dial. Released in 2005 as a successor to the 5035, this reference was discontinued around 2020 but remains a highly sought-after model on the secondary market. 

• Movement: Caliber 324 S IRM QA LU, an in-house automatic movement visible through a sapphire crystal exhibition caseback.

• Complications:

  • Annual Calendar: Automatically accounts for months with 30 or 31 days; requires only one manual adjustment per year on March 1st.

  • Moon Phase: Highly accurate lunar cycle indicator at the 6 o'clock position.

  • Power Reserve: Up-down indicator located below 12 o'clock, showing approximately 35 to 45 hours of autonomy.

• Case & Dial: 39mm 18k yellow gold case with a slate grey dial featuring applied gold hour markers and Arabic numerals at 12, 3, and 9.

• Strap: Typically paired with a brown or black alligator leather strap and an 18k yellow gold fold-over (deployant) clasp.