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What Are They Made Of? – A Historic Guide to Watch Case Materials

Who actually makes all these watch cases? Today it’s the manufacturing brand but over most [...]

More Than A Typo – The Curious Case of The Universal Geneve “Contax”

  February 21, 2025     Marcus Siems @siemswatches     Collector, Author, Data Analyst   [...]

Decades of Technical Evolution – Henri Gerber & His Opus at Omega (1928-60s)

February 26, 2025     Marcus Siems @siemswatches     Collector, Author, Data Analyst     [...]

A Watch Dealer’s Diary Part II – How Many Watches are Sold at Goldammer?

Apr 10, 2025     Marcus Siems @siemswatches     Collector, Author, Data Analyst It is [...]

A Minimal Change for Maximal Speed – A Unique Universal Geneve Compax

May 12, 2025     Marcus Siems @siemswatches     Collector, Author, Data Analyst     [...]