Blog
Stories from the workshop
ETA 2892-A2 — the slim calibre half of Switzerland calls its own
The ETA 2892-A2 is the thinnest mass-produced automatic ETA calibre and the base movement behind in-house designations from Longines, Omega, Breguet, and dozens of others.
Read more → Why the Miyota 9015 Rivals Swiss Calibres
The Miyota 9015 is a Japanese automatic movement with 24 jewels and 28,800 bph that matches Swiss calibres spec-for-spec at a fraction of the price. History, strengths, and alternatives.
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Sellita SW200-1: How the Subcontractor Became the Rival
The Sellita SW200-1 — a Swiss automatic built on the ETA 2824-2 architecture that grew from ETA's own assembler into its biggest rival. History, specs, and an honest comparison with ETA and the Chinese Seagull ST2130 clone.
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ETA 2824-2 — The Benchmark Every Self-Winding Movement Is Measured Against
The ETA 2824-2: Switzerland's most widely used automatic calibre — its grades, the Etachron system, servicing and common faults, plus the Sellita SW200-1, ETA 2892-A2 and Miyota 9015 alternatives.
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Valjoux 7750: the chronograph that survived the quartz crisis
The history and modern use of the legendary Valjoux 7750 (ETA 7750) chronograph movement and the Asian 7750 as an affordable alternative.
Read more → History and use of the UNITAS 6498 watch movement
The history and modern use of the UNITAS 6498 movement and its clones — especially the Seagull ST36 / ST3620.
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The art of patina: how copper tells stories
Patina is not a flaw — it's time's signature. Discover how my copper time machines gain character with age.
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