Nautilus Perpetual Calendar 5740 White Gold / Blue

Patek Philippe Nautilus Perpetual Calendar 5740 White Gold / Blue

Patek Philippe · Nautilus

The Nautilus Perpetual Calendar 5740 White Gold / Blue has an integrated bracelet: standard watch bands do not fit this model.

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Lug width
integrated bracelet
Case diameter
40 mm
Reference
5740/1G-001
Family
Nautilus
Year
2018

Why no standard band fits this one

On the Nautilus Perpetual Calendar 5740 White Gold / Blue the bracelet is drawn as part of the case: the first link continues the case profile instead of sitting in a gap between two lugs. There is no lug width to match, so there is no size to order, and a band bought by millimetres will not go in whatever the number.

It is not a rare way to build a watch. 158 Patek Philippe references in the database are built this way, and across every brand it is 6.1% of the catalogue. What replaces the bracelet is a band cut to this case, shaped to close the opening the way the bracelet did.

Why no strap fits an integrated bracelet →