Girard-Perregaux 99500 Complication Overview

quattro · 2025-05-09T14:48:25Z

Explore the rare Girard-Perregaux Ref. 99500 platinum Minute Repeater, potentially a unique prototype. Discover its Cal. 9890 movement, guilloché dial, and collector insights on this neo-vintage masterpiece.

Emmanuel, known as 'quattro' on WatchProSite, brings to light a captivating Girard-Perregaux Minute Repeater, reference 99500. His detailed post, featuring high-quality images and a video, invites collectors to appreciate a potentially unique platinum timepiece. Emmanuel's work highlights the enduring appeal of rare complications and the historical significance of Girard-Perregaux's haute horlogerie.

This intriguing 39 mm platinum Minute Repeater, which could be a prototype as it is numbered 0, and which is powered by cal. 9890, was sold as lot 60 last March, during Phillips' Watches Online Auction: The Geneva Sessions Spring 2025.

A truly good-looking piece, with its silver guilloché dial and blued leaf hands.

Best, Emmanuel

PS: if you're interested, I've posted more ref. 99500 and some ref. 99550 here.

credit: @watchesbylogan (1-2) & phillips

Key Points from the Discussion

The reference 99500, numbered '0', is likely a unique piece produced around 1995 during the Macaluso era, representing a 'neo-vintage' golden age for Girard-Perregaux.
Girard-Perregaux is an underrated brand with a rich history in watch and movement making, deserving greater recognition, especially for complex pieces like this minute repeater.
Few companies have produced minute repeaters with more than two gongs; Audemars Piguet and Girard-Perregaux are notable for their numerous carillon references and calibers in recent years.
The 39mm case size, while considered substantial by some, is viewed as stylish and appropriate for many wrist sizes, with a growing appreciation for smaller diameters like 36mm.
The online data for such rare pieces is often imprecise, but the watches themselves remain highly enjoyable for collectors.

The Discussion

MichaelC

May 9, 2025

W O W! I have never seen this one before

My kind of GP! Thanks for posting it, Emmanuel!

quattro

May 9, 2025

Very much my kind too!

And quite a unicorn, apparently. Cheers, Emmanuel

May 9, 2025

New to me as well. Thanks for bringing this marvel to light, Emmanuel.

quattro

May 9, 2025

My pleasure!

Best, Emmanuel

MichaelC

May 9, 2025

Calling Singapore Marc, maybe he will have some more information on this special piece.

Aquaracer1

May 9, 2025

Paging Doctor Marc 🙂

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