Technical Archive

Breitling
Superocean A1736402BA29132S— lug 20mm

Breitling Superocean A1736402BA29132S: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Superocean 42

Artisanal Note

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

Technical Specifications

Breitling A1736402BA29132S
Lug Width
20 mm

The essential strap measurement.

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Reference

A1736402BA29132S

Movement

Breitling caliber Caliber 17 Hours, Minutes, Seconds | Date

The Heritage

The Breitling Superocean 42 (reference A1736402BA29132S) is a professional dive watch born in 1957, featuring a 42 mm stainless steel case with unidirectional bezel and water resistance to 200 metres. It is powered by the Breitling calibre 17, an automatic movement based on the ETA 2824-2 with date and approximately 38 hours of power reserve. The integrated bracelet design creates a unified visual continuity. The lug width is 20 mm, a standard size compatible with Milano Straps' complete catalogue.

FAQ

What is the lug width of the Breitling Superocean A1736402BA29132S?

The lug width of the Breitling Superocean A1736402BA29132S is 20 mm. This measurement is taken with a digital calliper positioned between the two lugs on the case back side. Any strap with a 20 mm attachment width is physically compatible with this reference.

What is the best strap for the Breitling Superocean A1736402BA29132S?

The ideal choice depends on context. For formal settings, a glossy black or navy alligator strap complements the stainless steel case beautifully. For daily wear, vegetable-tanned calfskin develops an authentic patina over time. For marine or sporting use, vulcanised rubber is technically the most appropriate option: waterproof and resistant to salt. A ballistic nylon NATO strap suits a casual, adventure-ready aesthetic.

How do I change the strap on the Breitling Superocean A1736402BA29132S?

The strap is removed using a spring bar tool to compress the spring bars within the case lugs. The operation takes approximately two minutes and requires no professional equipment. It is advisable to work on a soft surface to avoid scratching the case or crystal. Alternatively, any watchmaker or jeweller can perform the swap in a matter of minutes.

Are there aftermarket straps compatible with the Breitling Superocean A1736402BA29132S?

Yes. Any strap with a 20 mm attachment width is physically compatible with the Breitling Superocean A1736402BA29132S. Milano Straps offers a curated selection of handcrafted straps in various leathers, rubber and nylon, all supplied with 20 mm spring bars included. The artisanal quality of Casati Milano straps is comparable — and frequently superior — to Breitling original accessories in terms of materials and finishing.

How long does a leather strap last on a Breitling Superocean A1736402BA29132S?

Longevity depends on the leather type, frequency of wear and maintenance. A good-quality calfskin strap, worn daily and kept away from excessive moisture and perspiration, typically lasts 2–4 years. Shell cordovan and quality alligator can exceed 5 years with minimal care (leather conditioner every 3–4 months). All Casati Milano straps carry an 18-month guarantee against manufacturing defects.