Technical Archive

Longines
Flagship L4.984.3.32.7— lug 21mm

Longines Flagship L4.984.3.32.7: 21mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Flagship 40 Stainless Steel - Yellow Gold / Gilt / Bracelet

Artisanal Note

"This model requires a precise 21mm lug width to preserve the original sartorial balance."

Technical Specifications

Longines L4.984.3.32.7
Lug Width
21 mm

The essential strap measurement.

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Reference

L4.984.3.32.7

Movement

Longines caliber L888.5 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Longines Flagship L4.984.3.32.7 is a 40mm stainless steel watch rooted in Swiss watchmaking tradition since the 1950s. It features the Longines caliber L888.5, a COSC-certified mechanical movement with hours, minutes, seconds, and date display. The 21mm lug width is characteristic of this model and requires specifically designed straps.

FAQ

What is the lug width of the Longines Flagship L4.984.3.32.7?

The Longines Flagship L4.984.3.32.7 features a 21mm lug width, measured between the inner edges of the spring bars. This dimension is specific to this model and is not compatible with 20mm or 22mm straps. Precise measurement ensures proper fitment and secure attachment.

Which strap material is most suitable for the Flagship L4.984.3.32.7?

Material selection depends on intended use. For formal settings, alligator or vegetable-tanned shell cordovan develop a natural patina over time. Fine-grained calf in cognac or chocolate tones offers daily versatility. For resistance and practicality, an FKM rubber strap with canvas inserts provides contemporary functionality without compromising construction quality.

How do I change the strap on the Longines Flagship L4.984.3.32.7?

Use a dedicated spring bar removal tool inserted gently into the small slot of each spring bar, pushing outward until disengaged. Repeat on the opposite lug. Once freed, the strap slides away. For installation, align the new strap's lugs with the spring bars and push until fully seated with an audible click.

Can I use an aftermarket strap on this Longines?

Yes, provided the lug width is precisely 21mm. Custom artisanal straps often offer superior construction quality compared to OEM options, allowing for leather selection, stitching finishes, and deployant choice. Source from manufacturers who understand the proportional subtleties of the Flagship.

What is the typical lifespan of a leather strap on this watch?

Longevity varies by material and usage patterns. Fine-grained calf typically lasts 2–3 years with regular maintenance. Vegetable-tanned shell cordovan lasts 4–5 years, developing distinctive patina. Alligator offers similar durability to calf with superior humidity resistance. Regular maintenance—cleaning, periodic conditioning, and post-humidity drying—significantly extends operational life.