Tudor · Style

Strap for Style 28 Stainless Steel / Yellow Gold / MOP-Diamond / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter28 mm
Reference12103-0017 (aka: M12103-0017)
FamilyStyle
MovementTudor caliber T201 hours, minutes, seconds | date
CaseMother of Pearl | Yellow Gold, Stainless Steel

Spring bar

Spring bars for Tudor

The right category for this model · choose the 20 mm size

Straps for the Style 12103-0017 (aka: M12103-0017)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Style 12103-0017 (aka: M12103-0017), seen from the bench

The Tudor Style reference 12103-0017 is powered by the automatic caliber T201 with functions of hours, minutes, seconds and date. The movement ensures the display of essential time indications through the dial. The construction follows the brand's technical standards for the reference market segment.

Frequently asked questions

What is the lug width of the Tudor Style 12103-0017?

The lug width of the Tudor Style 12103-0017 is 20mm. This is the distance between the inner edges of the lugs, the effective space where the strap is inserted. This dimension is proportioned to the compact 28mm case diameter, ensuring visual harmony and compatibility with a wide range of artisanal straps.

What is the best strap for the Tudor Style 12103-0017?

Choice depends on intended use and desired aesthetics. For formal elegance, we recommend black or cognac brown alligator that emphasises the two-tone case. For natural patina and daily versatility, vegetable-tanned leather in brown, hazelnut or burgundy tones. For material exceptionality, shell cordovan in brown or burgundy. NATO in vulcanised rubber for contemporary practicality.

How do I change the strap on my Tudor Style 12103-0017?

Changing a 20mm strap requires a spring bar tool to remove the elastic pins (spring bars) securing the strap to the lugs. Insert the flat blade into the small hole at the base of the lug, compress the spring, remove the old strap. Repeat on the opposite side. Insert the new strap vertically, aligning the holes with the spring bars, then compress until the click closure.

Can I use aftermarket-compatible straps on my Tudor Style 12103-0017?

Yes, absolutely. Any strap with a 20mm lug width is compatible. Custom artisanal straps from Casati Milano or standard-size straps from MilanoStraps guarantee construction quality, premium materials and personalisation. Always verify that strap thickness is suitable for lug geometry to ensure a secure fit without lateral movement.

How long does a leather strap last on the Tudor Style 12103-0017?

A premium leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts 3-7 years with moderate daily use, depending on maintenance and climatic conditions. Quality leather develops natural patina over time. To extend durability, avoid prolonged immersion, apply protective balms periodically and replace the strap at the first sign of aesthetic deterioration to protect the case.

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