H. Moser & Cie · Pioneer

Strap for Pioneer Perpetual Calendar MD Stainless Steel / Funky Blue

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

Lug width20 mm
Case diameter43 mm
Reference3808-1201
FamilyPioneer
MovementH. Moser & Cie caliber HMC 808 hours, minutes, day / Night Indication, small seconds | leap year, month, perpetual calendar, big date | power reserve indicator
Year2019
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 Pioneer 3808-1201

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Pioneer 3808-1201, seen from the bench

The H. Moser & Cie Pioneer 3808-1201 is a stainless steel watch featuring a hypnotic smoked dial and leaf-shaped hands. Equipped with the HMC 808 in-house calibre, it offers hours, minutes, day/night indication, small seconds, perpetual calendar with month indication, large date, and power reserve indicator. The case measures 42.80 mm in diameter with a 20 mm lug width.

Frequently asked questions

What is the exact lug width of the H. Moser & Cie Pioneer 3808-1201?

The H. Moser & Cie Pioneer 3808-1201 features a lug width of 20 mm, which is the precise distance between the two lugs where the strap attaches. This technical specification is essential for selecting compatible aftermarket straps.

What is the best strap for the Pioneer 3808-1201?

Strap selection depends on your intended use. Crocodile alligator represents the purest aesthetic choice, shell cordovan offers softness and colour evolution over time, whilst vegetable-tanned leather ensures durability. For sports wear, a thin grey or blue NATO maintains the model's minimalist elegance.

How do you change the strap on the H. Moser & Cie Pioneer 3808-1201?

Use a spring bar tool for extraction. Position the strap at 90 degrees to the case, gently compress the pin inward and slide the strap laterally until it releases. The process requires precision to avoid scratching the case.

Are aftermarket straps compatible with the Pioneer 3808-1201?

Yes, provided they respect the exact 20 mm lug width specification. Premium watchmaking aftermarket straps, such as those offered by Milano Straps, are fully compatible and provide endless aesthetic personalisation options for your timepiece.

How long does a leather strap last on a watch like the Pioneer 3808-1201?

Durability depends on tanning quality and intensity of use. Alligator and shell cordovan last 5-8 years with ordinary care. Vegetable-tanned leather resists 3-5 years. Factors such as perspiration, humidity and frequency of wear significantly influence longevity.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only