Longines · Presence

Strap for Presence 34.5 Automatic Gold

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter35 mm
ReferenceL4.778.6.32.0 (aka: L47786320)
FamilyPresence
MovementLongines caliber L619.2 Hours, Minutes, Seconds | Date
CaseYellow Gold

Spring bar

Swiss Standard universal spring bars

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

The Presence L4.778.6.32.0 (aka: L47786320), seen from the bench

The Longines Presence L4.778.6.32.0 is a contemporary evolution of a line launched in the 1970s. This yellow gold model features a 34.50 mm case with a sober, symmetrical dial and no complications. It is powered by the Longines L619.2 automatic movement with date and moonphase, certified to ±10 seconds per day. The 18 mm lug width accommodates various strap options including alligator leather.

Frequently asked questions

What is the lug width of the Longines Presence L4.778.6.32.0?

The lug width of the Longines Presence L4.778.6.32.0 is 18 mm. This measurement refers to the internal distance between the two lugs on the case and is the fundamental parameter for selecting a compatible watch strap. An 18 mm strap fits perfectly without gaps or overlaps.

Which strap do you recommend for the Presence L4.778.6.32.0 in yellow gold?

For a yellow gold Presence, we recommend straps in dark brown alligator or tabacco shell cordovan. Alligator complements the precious material with sober, natural texture, whilst cordovan offers subtle lustre and pronounced colour evolution over time. Both materials age magnificently when paired with yellow gold.

How do I change the strap on a Longines Presence?

The strap is changed by extracting the spring bars (lugs) that connect the strap to the case. Use a dedicated spring bar tool to gently lift the pin from one side, remove it, take off the old strap and insert the new one, aligning it with the lugs. Reinsert the pin carefully until the security click. If inexperienced, consult a qualified watchmaker.

Can I use an aftermarket compatible strap with the Presence L4.778.6.32.0?

Yes, any 18 mm strap is compatible with the Presence L4.778.6.32.0. Artisanal straps offer greater customisation than original Longines straps, with premium leather selection, exclusive colourways and adjustable sizing. Always verify that the strap is the correct lug width (18 mm) before purchase.

How long does a natural leather strap last on a watch worn daily?

A high-quality natural leather strap (alligator, shell cordovan, calf) typically lasts 3–5 years with daily use and regular maintenance. Durability depends on intensity of use, humidity exposure and care practices. Vegetable-tanned leather straps benefit from occasional leather balm application to maintain elasticity. Synthetic or NATO fabric materials have longer lifespans, often exceeding 7–10 years.

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