Tudor · Style

Strap for Style 34 Stainless Steel / Blue / 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 diameter34 mm
Reference12300-0009 (aka: M12300-0009)
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 12300-0009 (aka: M12300-0009)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Style 12300-0009 (aka: M12300-0009), seen from the bench

The Tudor Style is a three-hand watch with date indication. It is equipped with the Tudor T601 caliber with hour, minute, second and date functions. The reference M12300-0009 represents one of the variants available in the collection.

Frequently asked questions

What is the lug width of the Tudor Style 12300-0009?

The Tudor Style 12300-0009 features a lug width of 20mm, which is the internal distance between the two lugs where the strap attaches. To verify this measurement, measure perpendicularly to the case plane the space between the two lugs: the value must fall between 19.5mm and 20.5mm to ensure installation without anomalous tension.

Which strap is best suited to the Tudor Style 12300-0009?

For the 12300-0009 we recommend alligator in neutral tones (black, brown, burgundy) for an elegant appearance, or fine-grained calf leather for tactile discretion. If you prefer versatility, a NATO strap in thick canvas or cotton-polyester in stone grey or black is entirely appropriate. For sophisticated monochromatic effect, pair a pure black strap that reinforces the case geometry.

How do you change the strap on this Tudor model?

Position the watch on a stable surface with the caseback facing up. Locate the pins connecting the strap to the case lugs (one per side). Using a specific pin extraction tool or a fine punch, gently push the pin downward from inside the case to release the old strap. Insert the new strap by aligning the holes, then reinsert the pin until it clicks into position. Never force: movement should be fluid.

Is the Tudor 12300-0009 strap compatible with other watches?

Yes, but only with models that have a 20mm lug width. Always verify the lug width on your watch before purchasing an aftermarket strap: 20mm is standard for the 12300-0009, but not universal. Brands like Rolex Submariner, Omega Seamaster 36mm and other classic 34-36mm models may have different lugs, so measure before purchasing.

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

A quality leather strap (alligator, calf, shell cordovan) has an average lifespan of 3-5 years with daily use, varying based on perspiration frequency, sun exposure and maintenance. Leather fears prolonged moisture and excessive heat: to extend lifespan, avoid baths but allow natural drying after rain. Apply protective treatment every 12-18 months. With proper care, some straps reach 7-8 years of appreciable use.

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.

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