Strap for Fifty Fathoms Bathyscaphe Titanium / Black / Black Canvas

The Blancpain Fifty Fathoms 5000-1230-B52A features a lug width of 23 mm. This measurement is proportionate to the 43 mm case diameter and accommodates robust straps in both leather and technical materials. To verify compatibility, measure the space between the case lugs using a digital calliper.

The choice depends on intended use. For actual diving, vulcanised rubber or technical NATO fabric straps are recommended, as they resist saltwater and dry quickly. For daily and formal wear, a strap in alligator leather or shell cordovan with vegetable tanning offers elegance and durability. Ideally, you should own two straps: one technical, one formal.

The strap is changed by removing the spring bars connecting the lugs to the case. Use a spring bar tool to gently push the bar from one side until it protrudes. Repeat on the other side, remove the old strap and insert the new one, aligning the holes with the lugs, then reinsert the bars. This is a delicate operation best performed by a professional.

Yes, provided they have a certified 23 mm lug width. Any quality strap manufactured to this specification is compatible. We recommend choosing straps made by specialised Italian artisans, such as those available on milanostraps.it, to ensure construction quality and durability over time.

A quality artisanal leather strap with vegetable tanning, crafted by an experienced bootmaker, typically lasts 4-7 years with moderate daily use. Longevity depends on care, frequency of wear and exposure to humidity and sunlight. If worn regularly in saltwater, lifespan reduces to 2-3 years. A technical rubber strap has virtually unlimited durability, though the material may lose elasticity over time.