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Tudor · Style

Strap for Style 34 Stainless Steel / Fluted / Silver / Strap

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

Lug width

20mm
20 mm strapsAll Tudor
Lug width20 mm
Case diameter34 mm
Reference12310-0021 (aka: M12310-0021)
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

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Straps for the Style 12310-0021 (aka: M12310-0021)

Selected for the 20 mm lug width · workshop selection

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The Style 12310-0021 (aka: M12310-0021), seen from the bench

The Tudor Style reference 12310-0021 is equipped with the T601 caliber with indications of hours, minutes, seconds and date. The movement offers the essential functions in a classic three-hand configuration with date. The Style collection represents Tudor's approach to elegant watchmaking with clean lines and everyday functionality.

Frequently asked questions

What is the lug width of the Tudor Style 12310-0021?

The Tudor Style 12310-0021 features a lug width (ansa width) of 20 millimetres. This measurement represents the distance between the two parallel holes on the case where the strap attaches via spring bars. The 20mm width is a balanced intermediate standard in watchmaking, positioned between smaller dress watches and larger sports models, ideally proportioned to the 34mm case diameter.

Which strap is most suitable for the Tudor Style 12310-0021?

The Tudor Style pairs excellently with grained calf leather straps of medium thickness, natural alligator for formal occasions, or shell cordovan for discerning collectors. Selection depends on usage: semi-rigid calf offers daily versatility and visible patina development, alligator creates refined formality, NATO guarantees sports practicality. All our 20mm straps are available bespoke for your specific wrist dimension.

How do I change the strap on my Tudor Style 12310-0021?

Strap replacement involves gently removing the spring bars using a spring bar tool. Locate the two holes on the case where the bar enters, insert the tool into the small lateral slot of the bar to compress the internal spring, remove the old strap, then align the new strap holes with the case lugs. If inexperienced, a professional watchmaker completes this operation in minutes.

Can I use an aftermarket strap on a Tudor Style 12310-0021?

Absolutely. The Tudor Style 12310-0021 is compatible with any strap featuring a standard 20mm deployante or buckle. Our artisanal milanostraps.it straps are precisely dimensioned for this lug width. We recommend superior leather qualities (vegetable-tanned calf, alligator, shell cordovan) to maintain the aesthetic integrity of the original Tudor piece.

How long does a leather strap last on a daily-wear watch like the Tudor Style?

A quality leather strap (grained calf, alligator, shell cordovan) subjected to daily daytime wear remains functional for 3–5 years, developing visible character monthly. Longevity depends on perspiration, sun exposure, and rotation frequency. Pure vegetable-tanned leather straps exhibit superior lifespan compared to chrome-tanned materials. We recommend rotating between 2–3 straps to extend individual lifespan and develop balanced patina across each.

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