Louis-Maurice Caillet is documented as the designer of Breguet Classique. Each watch links to its strap size and story.

Breguet Classique co-designer Reference 3130

The prototypist worked alongside Roth on early Roth-era Classiques, among them the ref. 3130 power reserve and moon phase.

20 or 21 mm

Strap size: 20 or 21 mm

Source: Phillips

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