Nivada Grenchen · F77

Strap for F77 Titanium / Grey / Velcro

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter37 mm
Reference68006A77-BC
FamilyF77
MovementSoprod caliber P024 ND Hours, Minutes, Seconds
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 F77 68006A77-BC

Selected for the 16 mm lug width · workshop selection

All 16 mm straps →

The F77 68006A77-BC, seen from the bench

The Nivada Grenchen F77 reference 68006A77-BC is equipped with the automatic caliber Soprod P024 ND, with hours, minutes and seconds indication. The model features 16mm lugs for the strap. The technical configuration maintains the essential timekeeping functions with a Swiss manufacture movement.

Frequently asked questions

What is the lug width of the Nivada Grenchen F77 68006A77-BC?

The lug width of the Nivada Grenchen F77 68006A77-BC is 16 millimetres. This measurement, uncommon by modern standards, was prevalent in the 1970s and represents a deliberate choice in the original design, ensuring balanced proportions on a 37mm case diameter.

Which strap is most suitable for the Nivada Grenchen F77?

The ideal strap depends on intended use. For formal elegance, we recommend alligator or shell cordovan with vegetable tanning. For a more technical aesthetic, consider a canvas NATO or rubber racing strap. Vegetable-tanned calf leather offers the finest balance between aesthetic versatility and maintenance practicality.

How do I change the strap on my Nivada Grenchen F77 68006A77-BC?

Strap replacement requires a spring bar remover tool: insert the tool beneath the lug on the opposite side of the case, apply gentle inward pressure until the internal spring disengages, then carefully extract the lug. Repeat on the opposite side. Insert the new strap by reversing this procedure, ensuring the spring is correctly positioned.

Can I use an aftermarket 16mm strap on this model?

Yes, any strap with a 16mm lug width is compatible with the Nivada Grenchen F77 68006A77-BC, provided the dimensions conform to specification. We recommend verifying construction quality and lug type—straight or curved—to ensure optimal case fit.

What is the lifespan of a leather strap on a watch like the F77?

Durability depends on material quality and usage patterns. Artisanal alligator or shell cordovan with vegetable tanning can last 5-10 years with proper maintenance. Calf leather, being more delicate, has an average lifespan of 3-5 years. Exposure to moisture and perspiration accelerates deterioration; we recommend rotating straps regularly and allowing them to dry thoroughly between wearings.

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