Steinhart · Pilot

Strap for Nav B-Uhr 47 Vintage Titanium A-Type

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

Lug width22 mm
Case diameter47 mm
ReferenceF0309
FamilyPilot
MovementETA caliber 2824-2 Hours, Minutes, Seconds | Date
CaseTitanium, Stainless 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 Pilot F0309

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

Frequently asked questions

What is the lug width of the Steinhart Pilot F0309?

The lug width of the Steinhart Pilot F0309 is 22mm (centre-to-centre). This specific measurement is required to mount a replacement strap correctly on the case. You can verify compatibility by measuring the distance between the two attachment lugs using a digital calliper or precision ruler.

Which strap should I choose for the Steinhart Pilot F0309?

The Pilot F0309 pairs excellently with vegetable-tanned leather, alligator, shell cordovan, regenerated cotton NATO, or vulcanised rubber straps. Your choice depends on intended use: leather and alligator for elegance, NATO for sport and daily wear, rubber for aquatic environments. Military green or navy blue emphasise the avionic aesthetic.

How do I change the strap on the Steinhart Pilot F0309?

To change the strap, remove the spring bars connecting the strap to the case using a dedicated spring bar removal tool. Once extracted, the old strap slides off easily. Align the new strap's holes with the lugs and reinsert the spring bars until they click firmly into place. Verify the strap is securely attached before wearing the watch.

Are aftermarket straps compatible with the Steinhart Pilot F0309?

Yes, all straps with a 22mm lug width are compatible with the Pilot F0309. Manufacturers such as Milano Straps offer artisan-quality straps in premium materials (Italian leather, regenerated NATO, rubber). The key is ensuring the measurement is exactly 22mm for precise fitting without play or forcing.

How long does a leather strap last on the Steinhart Pilot F0309?

A quality leather strap with vegetable tanning typically lasts 2-4 years with moderate daily use. Longevity depends on humidity exposure, temperature extremes, and frequency of wear. Periodic conditioning with dedicated leather balm extends strap life. Agricultural leather develops characteristic patina over time, enhancing aesthetic value.

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