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Steinhart · Pilot

Strap for Nav B-Uhr 44 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 width

22mm
22 mm strapsAll Steinhart
Lug width22 mm
Case diameter44 mm
ReferenceF0310
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

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Straps for the Pilot F0310

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Pilot F0310, seen from the bench

The Steinhart Pilot F0310 is a contemporary evolution of German instrumental precision watchmaking tradition rooted in navigation chronometers and military tool watches. The 44mm case combines titanium and stainless steel construction, housing an ETA caliber 2824-2 movement with 28,800 vibrations per hour and accuracy of ±6/+4 seconds per day. The 22mm lug width accommodates a wide range of replacement straps and reflects the standard established by medium-large format tool watches. Unidirectional rotating bezel and screw-down caseback exemplify Steinhart's consistent construction standards applied without exception.

Frequently asked questions

What is the exact lug width of the Steinhart Pilot F0310?

The lug width of the Steinhart Pilot F0310 is 22mm. This measurement is taken by positioning a digital calliper inside the lug, in the seating intended for the spring bar, measuring the distance between the two anchor holes. Precise measurement ensures perfect compatibility with aftermarket straps and eliminates side play or excessive tightness.

Which strap pairs best with the Steinhart Pilot F0310?

The F0310 pairs ideally with alligator or vegetable-tanned calf leather straps in chocolate brown, grey-taupe, or polished black tones. For a more casual and technical approach, heavyweight canvas NATO straps in navy blue or military grey-green emphasise the instrument character of the timepiece whilst respecting its Germanic heritage. Those seeking versatility appreciate rubber straps for situations where humidity or temperature fluctuation are operational realities.

How do you change the strap on a Steinhart Pilot F0310?

To change the strap on a Steinhart Pilot F0310, you require only a simple tool: a small horizontal screwdriver or a spring bar tool. Position the watch so the lug is easily accessible, insert the blade of the spring bar tool into the groove of the pin until the U-shaped spring (spring bar) lifts, then extract the pin. Repeat from the other side and replace the strap. No specialist equipment is necessary.

Which aftermarket straps are compatible with the Pilot F0310?

All artisanal straps with 22mm lug width are fully compatible with the Steinhart Pilot F0310. Compatibility depends exclusively on lug width, not on watch brand. Milano Straps offers a complete range of 22mm straps in leather (alligator, calf, shell cordovan), NATO and rubber, customisable according to individual colour and construction preferences.

How long does a leather strap last on a Steinhart Pilot F0310?

The lifespan of a leather strap varies according to material, tanning method, and usage. A quality vegetable-tanned calf strap typically offers 4–6 years of daily wear before replacement is necessary; shell cordovan, thanks to superior structural density, can exceed 7–8 years. Alligator, owing to its cellular composition, tends to age more visibly. Periodic maintenance (gentle cleaning, conditioning) significantly extends strap service 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