Sinn
Diving Watches U1— lug 22mm
Sinn Diving Watches U1: 22mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"The 44 case requires a precise 22mm lug width to preserve the original sartorial balance."
Technical Specifications
Sinn U1The essential strap measurement.
Browse 22mm straps →U1
Sellita caliber SW200-1 a Hours, Minutes, Seconds | Date
Acciaio
Sapphire
1000
The Heritage
Compatible Straps
Selected for the 22mm lug width of the Diving Watches
FAQ
What is the lug width of the Sinn Diving Watches U1?
The Sinn U1 features a lug width of 22 millimetres. This width is the standard specification for professional diving watches in this category and ensures balanced proportioning with the 44-millimetre case. Accurate measurement is performed by placing an internal calliper within the strap seat, measuring from lug to lug.
Which strap is most suitable for the Sinn Diving Watches U1?
For the Sinn U1, we recommend a NATO Premium in neutral colours (black, navy blue, military green) for intensive underwater use, or a robust calf with vegetable tanning for mixed applications. Alligator represents the most sophisticated choice if operating in marine environments: the scale structure naturally resists saltwater. Thermosetting rubber is ideal for extreme diving operations.
How do you change the strap on a Sinn Diving Watches U1?
Strap replacement on a diving watch is performed by removing the lug spring bars using a dedicated tool. Ensure you work on a clean surface to avoid losing components. Insert the new strap by threading the spring bar into the lug seat, applying pressure until complete seating is achieved. Verify that the strap is aligned and the passants are correctly positioned before wearing the watch.
Is an aftermarket strap compatible with the Sinn U1?
Yes, any strap with a 22-millimetre lug width is compatible with the Sinn U1. Milano Straps offers a complete range of artisanal straps in this specification, verified for fit and constructional quality. We recommend verifying that the passant thickness does not exceed 4.5 millimetres to ensure optimal comfort.
How long does a leather strap last on a diving watch?
A quality leather strap, subjected to regular cycles of immersion in freshwater and saltwater, has an average lifespan of 18-24 months with proper maintenance. Rinsing the strap with fresh water after each marine immersion, drying it completely, and applying a natural conditioner every 3-4 months significantly extend useful life. Vegetable tanning offers greater resistance compared to rapid industrial methods.