H. Moser & Cie · Endeavour

Strap for Endeavour Perpetual Calendar, Palladium, Blue Fumé Dial

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
Reference1341-0601
FamilyEndeavour
MovementH. Moser & Cie caliber HMC 341 Hours, Minutes, Day / Night Indication, Small Seconds | Leap Year, Month, Perpetual Calendar, Big Date | Power Reserve Indicator

Spring bar

Swiss Standard universal spring bars

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

Straps for the Endeavour 1341-0601

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Endeavour 1341-0601, seen from the bench

The H. Moser & Cie Endeavour 1341-0601 is a minimalist Swiss watch featuring a blue fumé dial and palladium case of 40.80 mm diameter. It houses the in-house caliber HMC 341, an automatic movement with perpetual calendar complication displaying day, month, date, leap year indication, and day/night function, offering 196 hours of power reserve. The lug width is 20 mm, characteristic of this model's classical proportions.

Frequently asked questions

What is the lug width of the H. Moser & Cie Endeavour 1341-0601?

The Endeavour 1341-0601 features a 20mm lug width. This measurement represents the internal distance between the two shoulders of the lug where the spring bar is inserted. To verify with precision, use a digital calliper to measure the lug slot: manufacturing tolerance ranges between 19.8 and 20.2mm. Milano Straps supplies straps with a guaranteed tolerance of ±0.1mm to ensure perfect compatibility and mechanical stability without lateral play.

What is the best strap for the Endeavour 1341-0601?

The finest aesthetic pairing is an alligator strap in noir or dark brown, whose regular grain perfectly complements H. Moser & Cie's geometric minimalism. For an ecologically conscious choice with natural patina development, vegetable-tanned calf represents an extraordinary alternative that gains character over time. For a sportier profile, a NATO strap in anthracite grey canvas maintains the formal rigour required by this timepiece. Black FKM rubber is ideal for dynamic contexts and guarantees absolute water resistance.

How do I change the strap on the H. Moser & Cie Endeavour 1341-0601?

Strap replacement is performed via spring bars: small specialist tools that allow you to compress the spring and slide the strap out of the lugs. Position the watch with the spring bar parallel to the ground, insert the tool into the small lateral slot to compress the spring, and gently slide the strap free. Repeat on the other side. For installation, reverse the procedure: insert one end of the spring bar into the slot, compress slightly, and slide the strap onto the spring until it clicks into position.

Can I fit an aftermarket strap from another brand on the 1341-0601?

Yes, provided the strap is dimensioned exactly at 20mm lug width. Milano Straps' bespoke leather straps are constructed to this specific width and guarantee mechanical compatibility and stability. Avoid generic mass-market straps with approximate tolerances: they may cause play, rotational instability, or insertion difficulties. Your H. Moser deserves a partner of equal precision.

How long does a leather strap last on the Endeavour 1341-0601?

Longevity depends on material and usage. A quality artisanal alligator strap, if worn daily, maintains structural integrity for 4–6 years before showing fatigue signs. Vegetable-tanned calf, if properly cared for and regularly dried, easily exceeds 5 years and improves aesthetically with ageing. A NATO strap typically lasts over 8–10 years. Rubber has a typical lifespan of 5–7 years before losing elasticity. Milano Straps offers restoration services and component replacement to extend your strap's life.

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