Strap for Seamaster Planet Ocean Ultra Deep Titanium / Black / Nato

The lug width of the 215.92.46.21.01.001 is exactly 22mm. This dimension is measured between the two lugs of the case and determines which strap is compatible. A measurement error would result in purchasing an unsuitable strap, so always verify this value using a digital caliper or consult the official Omega technical specifications.

For this 45.50mm titanium case, high-quality leathers such as alligator with vegetable tanning (tobacco or black color), shell cordovan, or dyed calf are ideal. In sports applications, vulcanized rubber and NATO fabric provide practicality. The choice depends on use: for daily formal wear, prefer leather; for diving or frequent water activities, opt for rubber or NATO.

The strap is replaced by removing the spring bars that connect the strap to the lugs. Use a dedicated tool (spring bar tool) or consult a watchmaking workshop. Always measure the inner length of the strap from the end of one lug to the opposite end: for an average wrist, consider approximately 110-115mm of total length.

Yes, provided it is certified for 22mm lug width. Always verify the supplier's specifications: milanostraps.it offers artisanal straps in leather, rubber and fabric, customizable and guaranteed for 18 months if made through Casati Milano.

A quality leather strap (vegetable tanned or shell cordovan) typically lasts 3-5 years with daily use, developing a characteristic patina. Factors such as humidity, frequency of water contact, and maintenance affect longevity. Straps made by artisans (such as Casati Milano) offer an 18-month guarantee and can be regenerated through reconditioning.