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18ct yellow gold Wrist Chronometer no. 7057

Case: s/n; 7057, 18ct yellow gold

Dial: silver, E. Koehn, Geneve

Movement: s/n; 7057, tonneau shaped caliber 11 ligne, 18 jewels, inscription on bridge; HR Ekegren made by E. Koehn, Geneva, Swiss, Eighteen 18 jewels, 1 x Poincon de Geneve quality seal. Same caliber as Niton and CH Meylan used, ebauche by Fils de Louis Elisee Piguet.

Provenance:
1929 - HR Ekegren by E. Koehn, Geneva, but in all probability by Niton

2016 - Evans, Japan

2017 - Instagram, by account holder jaeger59 (Tokyo vintage watch hobbyist)

Digital jump hour wristwatch made by HR Ekegren by E. Koehn, Geneve, but in all probability by Niton