Alexandre Meerson · Altitude Officer

Strap for Altitude Officier Classic

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

Lug width20 mm
Case diameter41 mm
Reference101OEIW
FamilyAltitude Officer
MovementAlexandre Meerson caliber AM-4808 Hours, Minutes
CaseTitanium

Spring bar

Swiss Standard universal spring bars

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

Straps for the Altitude Officer 101OEIW

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Altitude Officer 101OEIW, seen from the bench

The Alexandre Meerson Altitude Officer 101OEIW is a 41mm titanium grade 5 sports watch embodying minimalist aviation aesthetics. It features the proprietary AM-4808 caliber movement with hours and minutes display. The 20mm lug width integrates harmoniously with the case diameter, following 1960s European sports watch proportions, and accommodates standard straps without adapters.

Frequently asked questions

What is the lug width of the Alexandre Meerson Altitude Officer 101OEIW?

The lug width of the Altitude Officer 101OEIW is 20mm. This dimension is proportionally harmonised with the 41mm case diameter and follows the international standard for large sports watches. To fit an alternative strap, ensure it is compatible with this specific lug measurement.

Which strap should I choose to enhance the aesthetic of the Altitude Officer 101OEIW?

The Altitude Officer 101OEIW, with its titanium case and minimalist lines, pairs beautifully with straps in slate-blue alligator (vegetable-tanned), oxblood shell cordovan, dark brown calf leather, or grey Oxford NATO. Select based on context: alligator for formal elegance, shell cordovan for sophisticated drama, calf for versatility, NATO for sporting practicality.

How do I change the strap on the Altitude Officer 101OEIW?

The Altitude Officer 101OEIW features integrated lugs on the case. To change the strap, gently remove the original strap by sliding the spring bars laterally with a spring bar tool. Insert the new 20mm strap into the lugs, ensuring the bars lock securely. We recommend visiting Casati Milano atelier for strap changes if you prefer to avoid the risk of case scratching.

Which aftermarket strap is compatible with the 101OEIW?

Any strap with a 20mm lug width is compatible with the Altitude Officer 101OEIW. Milano Straps offers an extensive selection of artisanal straps in this size: vegetable-tanned leather, alligator, shell cordovan, FKM rubber and NATO fabrics. All are ready to ship and customisable according to your preferences.

How long does a leather strap last on the Altitude Officer 101OEIW?

The lifespan of a natural leather strap varies depending on material and usage conditions. An alligator or vegetable-tanned shell cordovan strap, with proper care (avoiding prolonged moisture and occasionally applying specific balms), will last 5-7 years of intensive use. Calf leather is slightly more vulnerable and requires greater care, approximately 3-5 years. FKM rubber maintains consistent performance for 7-10 years without significant degradation.

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