luna sole blue patina

 

In the center of the dial, there are two overlapping discs. The lower disc, the sky or sun disc, shows the sun as a large round circle in white gold leaf on one side of the center with a blue patina heart-shaped area on the opposite side. The upper disc, the lunar ring in white gold powder, representing the moon, is perforated or consists of a hoop the size of the sun. With the heart-shaped surface in blue patina on the sky or sun disc, the different phases of the lunation can be read using the lunar ring.

The sky or sun disc fully rotates in 24 hours, completing one full rotation per day around the center, where the earth is located. At 12:00, the sun is at the top position, and at midnight, it is at the bottom position. In the morning, when it rises above the horizon, it is at 9:00, and in the evening, when it sets on the horizon, it is at 3:00. This allows its position in the sky to be determined at any time.

The same applies to the moon, with the only difference being that it lags behind the sun and completes one full rotation approximately every 29.5 days. This means it also passes over the heart-shaped surface, and its illumination can be read in the inner circle of the lunar ring. When the moon is opposite the sun, it is fully illuminated, indicating a full moon. When it is directly above the sun, it is outside the heart-shaped area and completely unlit, indicating a new moon. Its position also corresponds to its position in the sky.

For the functioning of the watch, see these two videos for full and new moon.

To summarize the functions:

The moon (lunar ring) and the sun (sky or sun disc) rotate clockwise. The sun completes one rotation in 24 hours (one day), while the moon rotates a bit slower, lagging behind the sun by one rotation every 29.5 days. In other words, for every 29.5 rotations by the sun, the moon makes 28.5.
The luna sole has a direct drive from the sun gear to the moon gear through a reduction gear, while the selene uses an epicyclic gear. The luna sole has therefore a deviation of one day in 122.3 years.

 

Further information

Dimensions

Diameter 40mm; height (incl. crystal) 9mm.

Weight

64g (without strap and buckle), 76g (incl. leather strap and buckle)

Water resistance

100m in titanium.

Case

2-part case in Sterling silver 925 designed by Ludwig Oechslin.

Base movement

ETA 2892-A2 with 42 hours of power reserve. Manufacturer: ETA SA / Grenchen / Switzerland.

Crown

Silver plated screw-down crown designed by Ludwig Oechslin.

Buckle

Silver plated, designed by Ludwig Oechslin for 22mm watch straps with no loops.

Watch strap

Ecopell leather strap in Olifant in small, medium, large or extralarge.

Crystal

Sapphire crystal.

Swiss Made

The ochs und junior luna sole special edition blue patina white gold leaf “ferragosto 2024” is manufactured in Switzerland. Each watch is assembled by hand and regulated at the ochs und junior workshop in La Chaux-de-Fonds.

Warranty

Two years.

Price & Orders

The ochs line luna sole special edition blue patina white gold leaf with Sterling silver case 925 is available at the price of
CHF 8,500 (export price without VAT) /
CHF 9,188.50 (incl. 8.1% VAT).

Orders can be placed by e-mail to [email protected] or directly on our homepage https://www.ochsundjunior.swiss

Orders with a 50% prepayment in accordance with the ochs und junior standard guidelines: Payment via stripe (homepage), via credit card (saferpay-link) or via bank transfer to our bank account:

Credit Suisse AG, Schwanenplatz 8, CH-6002 Lucerne
ochs und junior AG
IBAN: CH31 0483 5039 2684 4100 0
Clearing No. 4835
Swift: CRESCHZZ80A
Account No. 0463-392684-41