The Ochs und Junior Annual Calendar is a masterpiece of mechanical simplification designed by Dr. Ludwig Oechslin. By using a series of custom gears instead of traditional springs and levers, Oechslin built a calendar module with only nine additional parts.
Overview
Brand: Ochs und Junior
Model: Annual Calendar
Collection: Calendars
Price: £7,200 GBP
Website: ochsundjunior.com
Specifications
Case Diameter: 40.0mm
Thickness: 11.0mm
Lug to Lug: 46.0mm
Lug Width: 22.0mm
Water Resistance: 100m
Case Material: Grade 2 Titanium
Crystal: Sapphire
Strap/Bracelet: Leather Strap
Design & Wearability
The dial displays the day, date, and month through rotating discs visible behind circular cutouts, showing raw titanium or customized colors. The case exhibits visible raw machining lines that celebrate its industrial origin.
Movement & Performance
Inside is the Swiss ETA 2824-2 automatic movement, which serves as a highly robust base. The custom annual calendar module sits atop it, running at 28,800 vph and offering a 38-hour power reserve.
Official Website
Ochs und Junior Annual Calendar product page
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