he new anno in the ochs line embodies this philosophy: hours, minutes, seconds, date, weekday, and month – requiring adjustment only once a year. Nothing more is needed.

The sandblasted, rhodium-plated dial does not need light in order to shine. It changes with it. Depending on the angle, its surface recalls a pale pebble smoothed by water, freshly fallen snow, or shell limestone in sunlight.

While the hours, minutes, and calendar displays remain understated, a second hand adorned with yellow gold leaf traces its path across the dial.

A small ray of sunshine. The watch’s beauty does not arise from excessive decoration, but from consistency. Available in 39 mm and 42 mm. Also available as a partner watch: two sizes, one attitude. For those who wear their time consciously and may like to share it.

An annual calendar watch accounts for months with 30 or 31 days. The date therefore only requires manual adjustment once per year on March 1st. Conventional annual calendar watches display the date, month and weekday using text and numbers.

They use levers and springs and comprise many parts. Ludwig Oechslin invested 3 years in developing a new annual calendar function comprised of just 3 additional parts. because fewer parts imply fewer interactions between parts and higher reliability. All functions can easily be set using the crown.

The 31 holes around the perimeter of the dial display the date with 10-minute markers serving as reference points. For example: the marker indicating 30 minutes also shows the 15th day of the month (30 ÷ 2 = 15). These 5-day markers allow for the date to be read at a glance and intuitively.

The date only needs to be adjusted once a year on March 1st.

Weekday: The 7 holes display the weekday (counterclockwise rotation). You can choose which weekday you would like to display at the top.

Month: The 12 holes display the month (counterclockwise rotation).

Day/night (6pm to 6am): One visible weekday dot indicates daytime (6am to 6pm). Two visible weekday dots indicate night time

Time: The exact minute and second can be read using the date holes, which are spaced at 2 minute intervals. Holes mark even minutes and gaps odd minutes. The holes and gaps are exactly the same width as the minute hand.

Mechanics: How is Ludwig Oechslin’s annual calendar unique? Oechslin executes his annual calendar as a gear system using only the following custom-designed parts:

• Dial that serves as a module in the gear system
• Month disk and cog with 5 teeth, double-toothed
• Collar with two fingers bonded to the hour rod
• Weekday disk
• Date ring

The month, date and weekday indications are actually inscribed directly on the front-side of the functional parts – an annual calendar can’t be reduced further.

TECHNICAL SPECIFICATIONS

Case in Grade 5 titanium, 42 mm or 39 mm | Sandblasted and rhodium-plated dial with patina markers | Patina hour and minute hands | Second hand gold leaf coated | Rhodium plated date disk, month wheel and weekday wheel | ETA 2824-2 | Strap: black Ecopell calfskin, available in sizes small, medium, large, or extra-large | Weight 42mm: 51g (without buckle and strap), weight 39mm: 45g (without buckle and strap) | Warranty: two years | Shipping via DHL Express or FedEx Priority | Non-customizable. Availability and price: Orders with a 50% deposit via the website or by email at [email protected]. Available in 12 weeks. Price: CHF 5177.00 – Export price / CHF 5596.00 – Incl. 8.1% Swiss VAT