Image courtesy of Girard-Perregaux, official product catalog · Auto-sourced via manufacturer CDN; vision-verified.

Girard-Perregaux

Laureato 42mm Steel

Name: Girard-Perregaux Laureato 42mm Steel 81010-11-431-11A
Brand: Girard-Perregaux
SKU: 81010-11-431-11A

Ref. 81010-11-431-11A

2016–present · 42mm · caliber GP Cal. 01800: in-house automatic, 28,800bph, 54h PR, 28j; the larger Laureato caliber, distinct from the GP03300 used in the 38mm; Girard-Perregaux manufacture

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Movement tier: unclassified · caliber GP Cal. 01800: in-house automatic, 28,800bph, 54h PR, 28j; the larger Laureato caliber, distinct from the GP03300 used in the 38mm; Girard-Perregaux manufacture · 54h power reserve (2.3 days)

Medium-large: suits wrists 6.5 in+ (16.5 cm+)

42 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

Counterfeit Laureatos show rounded octagonal transitions; genuine examples have right-angle edges at every facet.

Known issues in the market

Counterfeit Laureatos exist and specifically fail at the octagonal bezel brushed-to-polished transitions, which are rounded instead of crisp.
Repolished genuine examples also show this same rounding; case work and counterfeit production share the same visual tell.

Area	What to check	What is correct	Red flag
case	Octagonal bezel facet edges	Every facet transition is a precise right angle between brushed and polished surfaces	Rounded transitions at any facet; even one soft edge is a repolish or replica indicator
bracelet	Bracelet taper and link finishing	Alternating brushed and polished links tapering to clasp; GP-signed clasp	Uniformly polished links or unsigned clasp; aftermarket bracelet substitution
movement	Cal. GP03300-0054 via caseback	In-house GP movement with decorated bridges visible through exhibition caseback	Solid caseback; any non-GP movement; ETA or Sellita substitution

Common legitimate replacements

Bracelets are the most frequently replaced part on the 42mm Laureato; aftermarket options exist and should be disclosed.
Case polishing is irreversible; factor edge condition into any pre-owned pricing.

Expert resources: Girard-Perregaux press materials at girard-perregaux.com. TimeZone GP forums for Laureato authentication thread references.

Authentication guide

Last reviewed June 2026

The Laureato 42mm is the primary target for replica production in the GP catalog. The eight-screw octagonal bezel is the most replicated element and the most commonly incorrect. Verify the screw count, screw position, and bezel facet finishing before anything else.

Known reproduction risks

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HIGH RISK

The Laureato 42mm is the most-replicated GP reference. Replicas concentrate replica effort on the bezel and bracelet, which are visually prominent, but consistently fail on screw count, bracelet taper, and finishing transitions.

Bezel screw count other than exactly 8
Screws at face midpoints rather than corners of the octagon
Bracelet that does not taper from case to clasp
Link finishing without the alternating brushed/polished pattern
Movement through the caseback that does not match the GP03300 layout
Case height inconsistent with the 10.7mm specification

The Laureato sits at a price tier where sophisticated buyers are common, but the watch has gained broader visibility in recent years and is increasingly a target at secondary market level. Physical inspection of the bezel is non-negotiable on any purchase.

Dial variants by era

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Era	Description	Identifiers
Post-2016 revival (current production)	Vertically brushed dial with applied baton indices, date at 3 o'clock, integrated tapering bracelet. Available in multiple dial colors including silver, green, and blue.	Octagonal bezel with exactly 8 polished screws at the corners Vertically brushed dial surface with applied white gold baton indices Integrated bracelet with alternating brushed and polished links tapering from the case "Girard-Perregaux" and "Laureato" text in the correct typeface Date at 3 o'clock with clean aperture integration Case diameter of 42mm; the 38mm variant is a separate reference with different case proportions

Service part flags

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Octagonal bezel

Original: Eight polished screws at the corners of the octagon, one per corner. The bezel alternates between brushed and polished facets. This is the highest-priority visual check for the Laureato.

Replacement tells

Bezel screw count other than 8
Screws at the midpoints of the octagon faces rather than at the corners
Bezel screws that are brushed rather than polished
Bezel finishing that is uniformly brushed or polished without the alternating pattern
Bezel shape that is hexagonal, decagonal, or round rather than octagonal

Integrated bracelet

Original: The bracelet tapers from the case lugs to the clasp. The link construction is the same throughout, alternating brushed and polished. The fold-over deployant clasp is signed "GP" on the inner face.

Replacement tells

Bracelet that does not taper, or tapers at an incorrect angle relative to known genuine Laureato examples
Clasp without "GP" or "Girard-Perregaux" text on the inner face
Link finishing that does not alternate brushed and polished surfaces
Bracelet that rattles or has loose links inconsistent with a well-maintained original

Case finishing

Original: The case body shows the same alternating brushed and polished surface treatment as the bezel and bracelet. The transition between brushed and polished surfaces should be sharp and consistent on each face.

Replacement tells

Case with fully polished surfaces -- genuine Laureato cases are never fully polished
Inconsistent finish transitions where the brushed-to-polished boundary is blurry or ragged
Polishing marks visible on surfaces that should be brushed, indicating refinishing

Case back markings

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2016 revival to present

Exhibition caseback displaying Cal. GP03300-0054
"Girard-Perregaux" and "Genève" on the movement
Reference 81010-11-431-11A on the case band between the lugs
Côtes de Genève striping visible on the movement plates
Serial number on the case band

Movement tells

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Cal. GP03300-0054 at 28,800bph with 54-hour power reserve. Identical caliber to the 38mm Laureato and the 1966 Automatic; the movement architecture is the same across the family.
Côtes de Genève striping must be visible on the movement plates through the caseback. Machine-finish plates without stripes indicate a non-original movement.
The rotor is typically decorated with the GP crest or striping pattern. An undecorated or plain rotor indicates a movement swap or an incorrect assembly.
GP service intervals are typically 5 years. A watch outside this window with no documented service should have the lubricants assessed before purchase.

Sources: Girard-Perregaux -- Laureato 42 specifications and revival documentation; WatchUSeek -- GP Laureato authentication forum thread.