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What watch does “Heritage II B20 Automatic 42” refer to?
The phrase “Breitling Superocean Heritage II B20 Automatic 42” is used for the model family whose current Breitling product pages call it the “Superocean Heritage B20 Automatic 42.” Breitling’s official manual retains “Heritage II” in its title. For a particular watch, use its reference number—not the family name alone—to confirm which configuration is being discussed. Official examples include UB2010121B1S1 and AB2010161C1S1. Breitling’s product listings show the current naming and reference-specific configurations; consult the official manuals for the documentation matching the watch.
Breitling describes the design as inspired by its original 1950s Superocean. That is the manufacturer’s account of its design lineage, rather than an independent historical assessment.
What are the published specifications?
The figures below are manufacturer specifications for the cited product configurations. They have not been independently measured here.
#1 Best Overall
- Breitling Superocean 42mm Heritage B20 Automatic Blue Dial Watch UB2010161C1S1
| Specification | Breitling-published detail |
|---|---|
| Case diameter | 42 mm |
| Case thickness | 14.35 mm |
| Water resistance | 200 m / 20 bar |
| Movement | Self-winding Breitling Manufacture Caliber B20; Breitling describes it as a COSC-certified chronometer based on Tudor Caliber MT5612 |
| Power reserve | Approximately 70 hours |
| Frequency | 28,800 vibrations per hour |
| Jewels | 26 |
| Crystal | Cambered sapphire with glareproofing on both sides |
| Bezel | Unidirectional, ratcheted |
| Crown and caseback | Screw-locked crown with two gaskets; screwed-in caseback |
These details come from Breitling’s official product information. The COSC designation and stated reserve describe the movement and specification; they do not establish how accurately a particular watch runs or how much reserve a specific example delivers in use.
How do the references differ?
“B20 Automatic 42” identifies a family, not one universal combination of case, dial and band. Breitling’s US listing for UB2010121B1S1 specifies stainless steel and 18k red gold, a black rubber strap and a 22.05 mm lug width. Its listing for AB2010161C1S1 specifies stainless steel and a blue rubber strap. The range also includes metal-bracelet configurations. Check the official listing for the exact reference before relying on any configuration detail.
Rank #2
- Model AB201016/C960-154A
For UB2010121B1S1, Breitling’s US page displayed USD 7,250 excluding sales tax in 2026. This is a dated, US, reference-specific retail listing—not a price for every version or a valuation of a pre-owned watch. Regional pages and configurations can differ. Check the live listing for the relevant market, along with taxes and the seller’s terms. Breitling’s US product pages are the source for the cited configuration and price snapshot.
What should a buyer consider?
Case size and fit
The published dimensions are 42 mm in diameter and 14.35 mm thick. Those numbers give a useful starting point for comparison, but they do not establish how the watch will sit on an individual wrist. If possible, assess the exact configuration in person rather than inferring comfort from the diameter alone.
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Rank #3
- Volcano Black Dial with a Black Ceramic Bezel and Date Window at 6 O'Clock
- Polished Stainless Steel Case on Black Aero Classic Rubber Strap, Case Diameter: 42mm
- Breitling Caliber B20. Self-winding Automatic Chronometer Movement, COSC Chronometer Certified
- Cambered Scratch Resistant Sapphire Crystal Glareproofed on Both Sides
- 200 Meters / 660 Feet Water-Resistant
Movement and reserve
The automatic B20 is specified with an approximately 70-hour power reserve. Breitling identifies it as a COSC-certified chronometer based on Tudor Caliber MT5612. These are manufacturer statements; available evidence here does not include an independent accuracy or reserve test.
Strap or bracelet fit
Configurations vary between rubber straps and metal bracelets, and the cited UB2010121B1S1 page gives a 22.05 mm lug width. A nominally 22 mm aftermarket strap may be a search starting point, but width alone does not prove that a strap, clasp or end link will fit. Confirm compatibility for the exact reference and attachment hardware.
Rank #4
- Breitling Superocean Heritage II Automatic Chronometer 42 mm Black Dial Men's Watch AB2010121B1A1
Water use and condition
Breitling rates the cited variants at 200 m / 20 bar. That rating is a manufacturer specification, not a guarantee for a used watch or for an example with unknown seal condition or service history. For practical care and water-use guidance, follow the manual for the exact reference rather than applying general instructions to every version.
Price and seller
Prices depend on region and reference, and a live retail listing does not establish pre-owned value. Before buying, confirm the reference, configuration, current local price, taxes, warranty and seller. An online listing should be checked against the corresponding official specifications; the product pages do not verify any third-party seller’s inventory or authenticity.
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- Breitling Superocean Heritage II Automatic Chronometer Black Dial Men's Watch UB2030121B1S1
What does this review establish—and what does it not?
This is a specification-led review grounded in Breitling’s published product information. It can assess what the manufacturer lists and clarify how the family’s references differ. It does not establish hands-on comfort, independent timing performance, real-world power reserve, water resistance of an individual watch, long-term reliability or resale value. Treat those as questions to resolve for the specific watch and its condition, not as conclusions implied by the model’s published specifications.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
