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

The lug width of the Tudor Style 12300-0013 is 20 mm. This measurement should be verified by placing a digital calliper perpendicular to the two spring bar holes (pin to pin). It is a relatively uncommon dimension that positions the model in a rare category within the contemporary watch landscape.

For the Tudor Style 12300-0013, we recommend alligator leather in brown or burgundy tones for maximum elegance, or vegetable-tanned calf leather in pearl grey for versatility and natural patina development. Shell cordovan represents a sophisticated option for those seeking minimalist construction with singular lustre over time. Your choice depends on intended use and your specific watch's dial colour.

To change the strap, remove the two lateral spring bars connecting the strap to the lugs. Use a spring bar tool, inserting it beneath the pin from the inner side of the case, then gently extract. Once the lugs are freed, align the new strap's holes with the lugs and secure the pins. Do not force: the pins must click into position audibly. If you own a press tool, it distributes force uniformly and minimises the risk of scratches.

Absolutely. Quality artisanal aftermarket straps are fully compatible with the Tudor Style 12300-0013 provided they respect the 20 mm lug width. MilanoStraps offers a wide selection of 20mm straps customisable in leather, size, initials and stitching thread colour. The Casati Milano atelier also creates bespoke straps with personal leather consultation and an 18-month warranty.

A quality artisanal leather strap, subject to regular maintenance, has an average lifespan of 3–5 years with moderate daily use. Vegetable-tanned calf and shell cordovan remain serviceable longer owing to greater fibre density. Alligator, whilst robust in grain, is more sensitive to humidity and direct UV exposure. Avoid prolonged water exposure, dry promptly in case of accidental wetting, and consider periodic rotation between multiple straps to extend the overall life of your Tudor Style 12300-0013.