Technical Archive

Breitling
Superocean Heritage AB3110241B1S1— lug 20mm

Breitling Superocean Heritage AB3110241B1S1: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Superocean Heritage B31 Automatic 40 Stainless Steel / Black / Rubber

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Breitling AB3110241B1S1
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

AB3110241B1S1

Movement

Breitling caliber Caliber B31 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Breitling Superocean Heritage B31 Automatic 40 is a professional diving watch from the 1950s, reinterpreted with industrial precision. The 40mm stainless steel case with black ceramic bezel balances robustness with wrist comfort. Powered by the automatic Breitling Caliber B31 chronometer-certified movement, it displays hours, minutes, seconds and date with −4/+6 seconds per day tolerance. Water-resistant to 200 metres with a screw-down crown, it requires a 20mm lug width strap for correct fitment.

FAQ

What is the lug width of the Breitling Superocean Heritage AB3110241B1S1?

The Breitling Superocean Heritage AB3110241B1S1 requires a strap with a lug width of 20mm. This measurement refers to the internal distance between the two lugs of the case and is the essential parameter for selecting a compatible strap. Using a digital calliper positioned between the lugs ensures an accurate reading.

What is the best strap for the Breitling Superocean Heritage AB3110241B1S1?

The ideal choice depends on the context. For formal occasions, a hornback alligator strap in 20mm complements the steel and ceramic case beautifully. For everyday or active wear, vegetable-tanned calfskin develops a distinctive patina over time. For aquatic environments, vulcanised rubber or a heavy-weave nylon NATO strap offer the best resistance to salt water and moisture.

How do I change the strap on the Breitling Superocean Heritage AB3110241B1S1?

Strap replacement requires a springbar tool or a fine-blade screwdriver. Compress the springbars fitted within the 20mm lugs to release the existing strap, then insert the replacement. Work on a soft surface to avoid scratching the steel case or ceramic bezel. If in doubt, a watchmaker or the Casati Milano atelier can carry out the operation safely.

Are there aftermarket straps compatible with the Breitling Superocean Heritage AB3110241B1S1?

Yes. Any strap with a 20mm lug width is compatible with the Breitling Superocean Heritage AB3110241B1S1, provided the springbars have the correct diameter for Breitling lugs. Milanostraps.it offers a curated selection of handcrafted 20mm straps in leather, NATO, and rubber, available in multiple lengths to suit different wrist sizes.

How long does a leather strap last on the Breitling Superocean Heritage AB3110241B1S1?

The lifespan of a leather strap depends on the quality of the hide, the tanning method, and daily care. An alligator or vegetable-tanned calfskin strap, kept away from prolonged water exposure and conditioned regularly, can last between 3 and 7 years while retaining its structural integrity. Casati Milano straps carry an 18-month warranty against manufacturing defects.