This 1999 Omega Speedmaster Triple Date, reference 3521.80, is a 39 mm stainless-steel automatic chronograph with blue dial, tachymètre bezel, day and month apertures, pointer date and 24-hour indication. It is powered by Omega calibre 1151, a Valjoux 7751-based complete-calendar chronograph movement.
Why It’s Special
The Triple Date belongs to the period when Omega expanded Speedmaster beyond the hand-wound Professional. It preserves the recognisable 39 mm Speedmaster case and tachymètre bezel while adding a complete calendar suite rarely seen in the core line. The blue dial is especially characteristic of late-1990s Omega, and calibre 1151 offers genuine mechanical complexity in a robust, established architecture.
Condition
Honest vintage condition with visible wear consistent with use. Stainless steel case shows surface scratches and moderate softening to edges from wear, with no major dents or structural damage and no evidence of aggressive polishing. Tachymeter bezel retains clear engraving with expected cosmetic wear. Original blue dial remains clean and well preserved with crisp printing and intact sub-dials; minor patina visible on the chronograph seconds hand, while other hands remain bright and well matched. Sapphire crystal shows light surface marks only. Bracelet shows stretch consistent with age but remains structurally sound and wearable. Inner box and card holder show material degradation and flaking typical of late-1990s Omega packaging.
Performance
Recently tested on timegrapher at +18 seconds per day. Acceptable for a neo-vintage automatic chronograph and suitable for regular wear. As with any vintage watch, this is a single snapshot rather than a service record.
Details
Reference: 3521.80
Movement: Omega Automatic Chronograph Calibre 5200
Serial: 54898872
Case: 39 mm stainless steel
Crystal: Sapphire
Bracelet: Genuine Omega Speedmaster bracelet (fits ≈ 18.5 cm wrist)
Inclusions: Inner box, warranty card, manuals and cardholder
Provenance: Sourced from Japan and inspected in Melbourne
