Replacement Aluminium Bezel Insert Compatible with Longines GrandeVitesse Chronograph L3.637.4
Restore or service your chronograph with this replacement aluminium bezel insert, designed for watch cases compatible with the Longines GrandeVitesse Chronograph L3.637.4 series. Finished in a clean black tone with a tachymeter-style scale, this insert is ideal for replacing a scratched, faded, or damaged original while preserving the sporty motorsport-inspired design of the GrandeVitesse.
The insert is constructed to follow the original profile, proportions, and bezel channel seating, allowing it to fit securely and align correctly once installed. Although this is a compatible aftermarket replacement, the scale layout, spacing, and overall appearance are crafted to look extremely close to the original style when worn on the wrist.
(Not an OEM part and not affiliated with Longines — compatible replacement only.)
Product Specifications
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Product Type: Replacement bezel insert
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Material: Aluminium
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Color: Black
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Compatibility: Longines GrandeVitesse Chronograph L3.637.4
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Reference Fit: L3.637.4.60.0
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Measurements: 41.5 mm (outer diameter) × 35.7 mm (inner diameter)
(manufacturing tolerance ±0.1 mm)
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Scale: Tachymeter-style chronograph scale
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Construction: Shaped according to original insert contour for proper bezel seating
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Finish: Matte aluminium surface with crisp printed numerals