Girard-Perregaux 6557 Chronograph

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A couple of months ago I reported on some Girard-Perregaux Chronographs with Excelsior Park movements inside…

And talked about the effect of one watch leads to another…

Here is another example of this – the Girard-Perregaux reference 6557 Chronograph.

The 6557 is a T.W.O register 45 minutes chronograph with a Excelsior Park based movement inside – GP Calibre 04 (Excelsior Park P4), a manual column wheel movement.

Red Telemetre scale and blue Tachymetre scale, pink gold hands and index and a sunburst silver dial…

Girard-Perregaux 6557 Chronograph – Excelsior Park based movement

The 6557 was only in production between 1955 – 1957. 120 pieces with white gold plated cases and 450 pieces with Chromac cases, 570 pieces in total.

My 6557 is the Chromac case version – chrome plated stainless steel case.

A quite large watch for its time, 38 mm in diameter. Similar, if not the same case as the reference 8862 Olimpico Chronograph (three register/Excelsior Park P40 based movement), non-waterproof case with snap-on case back.

Girard-Perregaux 6557 Chronograph – 38 mm Chromac case

In the background you see the waterproof equivalent version, the 6558 with round pushers and screw down case back, similar or same case as the 8846 Olimpico Chronograph (three register/Excelsior Park P40 based movement).

Here shown in the 1963 Girard-Perregaux catalogue.

Girard-Perregaux catalogue – 1963 6558 Chronograph

The two register gives the dial a very nice symmetrical look, less crowded than the 8862.

Girard-Perregaux 6557 Chronograph – symmetric dial

Still miss the 6558 – but happy to have been able to gather the 8862, 8846 and 6557…

Girard-Perregaux Chronographs – 8862, 8846 and 6557

If you like Excelsior Park based chronographs – there are several more reports to read here on my blog: chronographs with Excelsior Park movements.

And if you like Girard-Perregaux – make sure to visit GP Chronicles!