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Grönefeld 1941 Principia, Ref. 1941 Principia, gold-white case
Grönefeld

1941 Principia

Ref. 1941 Principia
2018–present · 39.5mm · caliber Grönefeld Calibre G-06: in-house automatic, 21,600bph, 56h PR, 31j, 226 parts; 22ct solid-gold micro-rotor on a ceramic ball bearing, Swiss lever escapement

Entry to the Grand Prix d'Horlogerie de Genève is voluntary and made by the brand. An entry is a watch registered for that year's competition, not a jury verdict, and several large houses including Rolex, Patek Philippe and Omega do not take part at all.

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Movement tier: unclassified · caliber Grönefeld Calibre G-06: in-house automatic, 21,600bph, 56h PR, 31j, 226 parts; 22ct solid-gold micro-rotor on a ceramic ball bearing, Swiss lever escapement · 56h power reserve (2.3 days)
Medium-large: suits wrists 6.5 in+ (16.5 cm+)
39.5 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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