Sinn · Diving Watches

Strap for Diving Watch U1 S E

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
Reference1010.023
FamilyDiving Watches
MovementSellita caliber SW200-1 a hours, minutes, seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Diving Watches 1010.023

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Diving Watches 1010.023, seen from the bench

The Sinn 1010.023 belongs to the Diving Watches collection of the German brand. It is powered by the Sellita SW200-1 automatic caliber with hour, minute, second and date functions. The watch features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Sinn Diving Watches 1010.023?

The Sinn 1010.023 features a precisely measured lug width of 22mm. This specification is the standard for diving watches built on 44mm cases and is essential for ensuring a balanced visual transition between the case and the strap. Always measure with a digital calliper between the lugs to verify strap compatibility.

Which strap is recommended for the Sinn 1010.023?

We recommend three categories for the 1010.023: vegetable-tanned alligator for lasting elegance, premium NATO in nautical fibres for intensive technical use, and FKM rubber for extreme aquatic environments. Each choice reflects specific watch usage. Alligator develops patina over time, NATO ensures security and waterproofness, rubber guarantees grip during immersion.

How do you change the strap on a Sinn 1010.023?

The 1010.023 uses standard 22mm spring bars. To replace the strap: gently press the internal spring from the ends and slide out the transverse pin. Once removed, insert the new strap by positioning the spring bar in the seat and pushing until the mechanism clicks into place. If the strap has a keeper or rubber pad, thread the pin through before securing it to the case.

Is an aftermarket 22mm strap compatible with the Sinn 1010.023?

Yes, any strap with a certified 22mm lug width is compatible with the 1010.023. Always verify the technical specification: some manufacturers indicate a range (21.5–22.5mm), others certify exact dimensions. We recommend brands that provide precise technical data and physically test compatibility. Italian artisanal straps adhere to international DIN and ISO standards.

How long does a leather strap last on a Sinn 1010.023?

A vegetable-tanned alligator strap lasts an average of 5–8 years in daily use, developing a natural patina that increases aesthetic value. Vegetable-tanned calf resists 3–6 years depending on sun and humidity exposure. Longevity depends on bathing frequency, UV exposure, and maintenance. Rotating between multiple straps extends the life of each piece. Shell cordovan can reach 10 years if properly maintained.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only