This Breitling Superocean Heritage 44 replica shares the B20 platform with several siblings, but the AB2030121B1S1 reference distinguishes itself through a full stainless steel construction paired with a black rubber strap instead of a bracelet. The black dial behind a domed sapphire crystal carries the vintage-inspired design language that defines the Heritage sub-line, with applied bar indices and a clean layout free of subdial clutter. The 44mm case diameter sits between the 42 and 46 mm Heritage sizes, moderate enough for daily wear on most wrists without feeling undersized. See how the 42, 44 and 46 mm cases compare in our guide before you choose a size.

Specifications

• Model: Superocean Heritage B20 Automatic 44
• Reference: AB2030121B1S1
• Case size: 44 mm
• Case: stainless steel
• Dial: black with applied bar indices, date at 6, SuperOcean Chronometer print
• Bezel: unidirectional, black ring in a steel coin-edge surround (genuine: black ceramic)
• Crystal: domed sapphire with anti-reflective coating
• Strap: black rubber (Aero Classic)
• Movement: clone Cal. B20, automatic, 28,800 vph
• Functions: hours, minutes, seconds, date at 6
• Power reserve: 55 hours (genuine Cal. B20: 70 hours)
• Water resistance: 50 m (genuine: 200 m)

Breitling’s own B20 is rated at roughly 70 hours of power reserve; the clone Cal. B20 inside this watch stores about 55 hours on a full wind. The genuine B20 also uses a silicon hairspring for magnetic resistance, a detail that is unverified for the clone.

From Breitling-Tudor B20 to Clone Cal. B20

For the genuine watch, Breitling developed the B20 on a platform shared with Tudor, which gives it proven reliability metrics across thousands of units in active circulation; this replica runs a clone Cal. B20 instead. On the genuine, that silicon hairspring adds magnetic resistance for a watch worn around laptops and phones all day. Where many Heritage references pair with mesh or leather, this rubber-strap variant specifically targets active outdoor use and warm-climate comfort. For the same dial configuration on a steel bracelet instead of rubber, see the AB2030121B on steel bracelet. All Heritage variants appear in the Superocean collection.

Superocean Heritage 44 Replica: Rubber or Mesh?

Placed next to the bracelet-equipped AB2030121B1A1, this rubber-strap reference runs lighter and grips the wrist with more flex and adaptability. The visual difference is minimal from the case up, but the on-wrist feel is entirely distinct between the two options. Rubber suits warm climates, active days, and situations where a steel bracelet might trap heat or snag on clothing. The Aero Classic rubber keeps the full Heritage aesthetic with a strap choice made for comfort over formality.