Strap for Superocean 42 Stainless Steel / Blue / Japan

The Breitling Superocean A173661A1C1 has a lug width of 20mm. This measurement is taken internally between the two lug tips using a digital calliper pressed directly against the case metal. Any strap with a 20mm fitment is compatible with this reference.

The answer depends on intended use. For marine or technical environments, a vulcanised rubber strap or ballistic nylon NATO remains the most coherent choice. For urban or formal wear, a vegetable-tanned alligator strap with a matte finish or a burnished smooth calf strap offers a significant aesthetic shift without compromising the instrument's character.

The strap is released by compressing the spring bars that connect the lugs to the case. A flat-tipped spring bar tool or a fine-bladed screwdriver is sufficient to compress the bar and slide it free from the lug hole. The operation takes under two minutes and requires no specialist equipment, provided care is taken to avoid scratching the stainless steel case.

Yes. Any strap with a 20mm fitment is compatible with the A173661A1C1. milanostraps.it offers a curated selection of handcrafted leather, rubber and textile straps specifically tested for this format, with spring bars included. Customisation is available both online and in person at Casati Milano atelier by appointment.

Longevity depends on the leather type and exposure to moisture. A vegetable-tanned calf strap, kept away from prolonged immersion and perspiration, retains structural integrity for two to four years with daily wear. Cordovan and alligator, due to their denser fibre structure, offer greater resistance to humidity. For intensive marine use, rubber remains the most durable long-term option.