Tudor · Style

Strap for Style 34 Stainless Steel / Burgundy-Diamond / Strap

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

Lug width20 mm
Case diameter34 mm
Reference12300-0015 (aka: M12300-0015)
FamilyStyle
MovementTudor caliber T601 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Spring bars for Tudor

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

Straps for the Style 12300-0015 (aka: M12300-0015)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Style 12300-0015 (aka: M12300-0015), seen from the bench

The Tudor Style reference 12300-0015 is equipped with the automatic caliber T601 which provides hour, minute, second and date indication. The movement ensures the essential timekeeping functions with the Tudor manufacture's automatic mechanism. The case features a classic construction with a traditional winding crown and a symmetrical dial layout.

Frequently asked questions

What is the exact lug width of the Tudor Style 12300-0015?

The lug width of the Tudor Style 12300-0015 is 20 millimetres. This measurement defines the horizontal space between the case lugs and determines strap compatibility: a strap must be specifically designed for this width to fit correctly without excessive play.

What is the best strap for the Tudor Style 12300-0015?

The best strap depends on usage: for formal elegance we recommend alligator in dark brown or burgundy tones; for daily versatility, a vegetable-tanned calf leather in taupe grey or black satin; for an urban and sporty style, a cotton NATO in navy blue. Quality construction, even stitching, and a satin steel buckle remain priorities regardless of choice.

How do I change the strap on the Tudor Style 12300-0015?

To change the strap you will need a spring bar tool. Position the watch on a soft surface, insert the flat end of the tool into the upper lug slot to compress the internal spring, remove the used strap and insert the new one by pressing until the lug clicks into place. Repeat on the other side. The procedure requires care to avoid scratching the case.

Can I use an aftermarket strap with a different lug width on the Tudor Style 12300-0015?

No, a strap must correspond exactly to the 20mm lug width. A strap of different width will not fit correctly into the metal lugs, creating excessive play or not fitting at all. Tudor has designed the 12300-0015 specifically for this width: respecting it ensures safety and aesthetics.

How long does a leather strap last on the Tudor Style 12300-0015?

The lifespan of a leather strap depends on daily wear and quality: a high-quality vegetable-tanned calf lasts approximately 3-5 years with daily use; alligator, being more resistant, can exceed 5-7 years. Factors such as humidity, perspiration, and sun exposure accelerate natural wear. Periodic maintenance (gentle cleaning and conditioning) extends durability. Bespoke straps from Casati Milano come with an 18-month warranty.

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