Montblanc · Timewalker

Strap for TimeWalker Dual Carbon Chronograph Automatic

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
Reference105805
FamilyTimewalker
MovementMontblanc caliber MB 25.01 hours, minutes, small seconds | date, day | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Timewalker 105805

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Timewalker 105805, seen from the bench

The Montblanc Timewalker 105805 is a 43mm stainless steel chronograph representing the contemporary evolution of one of Villeret's most iconic collections. It features the proprietary MB 25.01 automatic chronograph caliber with hours, minutes, small seconds, date, and day functions. The watch has a 22mm lug width, sapphire crystal, and 100 meters water resistance, embodying Montblanc's philosophy of functional instrumental watchmaking without ostentation.

Frequently asked questions

What is the lug width of the Montblanc Timewalker 105805?

The Montblanc Timewalker 105805 features a lug width of exactly 22mm. This width is compatible with all straps designed for the 22mm category and represents the modern standard for 43mm chronographs. To verify the measurement, use a digital calliper placed directly between the lugs at the case: the value you obtain must be 22mm to ensure perfect compatibility.

Which strap do you recommend for the Timewalker 105805?

For the Timewalker 105805, we recommend materials that respect the dual sporty and elegant nature of this chronograph. Genuine alligator in dark tones creates a visually sophisticated pairing without losing functional credibility. Vegetable-tanned calf offers a warmer, more intimate profile and ages beautifully over time. An O.D. green or grey nylon NATO strap amplifies the instrumental character of the piece. FKM rubber remains the ultimate choice for those who wish their chronograph entirely free from formal compromises.

How do I change the strap on a Montblanc Timewalker?

The strap on the Montblanc Timewalker 105805 is secured by standard 22mm spring bars. To remove the strap, use a dedicated spring bar tool to push the pin inward, releasing the lug from the case. Repeat on the other side. To install a new strap, align the first pin, press the lug onto the case until you feel the spring bar click into place. Verify visually that the pin is fully seated. Repeat on the second side and check for proper lug stability.

Can I use an aftermarket strap on this Timewalker?

Yes, the Montblanc Timewalker 105805 accepts any strap manufactured for the 22mm lug width, whether from Montblanc or third-party makers. Italian artisanal leather straps in Tuscan leather, alligator, or calf are fully compatible and often offer superior build quality compared to the original strap, whilst maintaining the aesthetic elegance of the case.

How long does a leather strap last before replacement?

The longevity of a leather strap depends on tanning method, usage frequency, and maintenance. A quality vegetable-tanned leather strap, used occasionally, can last 5-8 years and develop a rich patina in its final years of service. A genuine alligator strap, being more durable, can exceed 10 years. Typical wear begins at the buckle edges (zone of maximum flexion) and the strap heel. Regular maintenance with natural waxes and specialised conditioners significantly extends strap lifespan.

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