Audemars Piguet Royal Oak Ref. 15400 40mm — Blue Dial
With a legacy spanning generations, the Audemars Piguet Royal Oak honors tradition while embracing modern precision. The blue dial nods to iconic references from the archive.
Key Features
- 40mm Stainless Steel Case: Proportioned for a confident wrist presence
- Blue Dial: Stick indices with luminescent coating for low-light readability
- Steel Bracelet: Comfortable, durable, and designed for everyday wear
- Sapphire Crystal: Scratch-resistant with anti-reflective coating
- Automatic Movement: Precision-calibrated for reliable daily timekeeping
Why Audemars Piguet Collectors Choose This Model
Audemars Piguet reinvented the luxury sports watch with the Royal Oak in 1972. Owning one means owning a piece of design history that changed horology forever.
Specifications
- Brand: Audemars Piguet
- Model: Royal Oak Ref. 15400
- Case Size: 40mm
- Case Material: Stainless Steel
- Strap: Steel Bracelet
- Dial Color: Blue
- Crystal: Sapphire
- Movement: Automatic


































Sara Nguyen (verified owner) –
@Tyler Reed Quick question, is the crystal sapphire on this minimalist watch?
Lucas_88 (verified owner) –
Just ordered this automatic timepiece, can’t wait to get it!!
Megan Cole (verified owner) –
Stunning piece!! 😍 Perfect for daily wear and so clean.
Tyler Reed (verified owner) –
Thinking of pulling the trigger on this watch, how’s the bracelet finish in person?