A. Lange & Söhne Richard Lange Perpetual Calendar Terraluna

Key Points from the Discussion

• The Terraluna's substantial size and weight are frequently cited as a major factor impacting wearability, with some likening it to a pocket watch rather than a wrist-worn piece.
• The overlapping regulator dials, while aesthetically unique, can make reading the time at a glance challenging, requiring a conscious effort to decipher the indications.
• One collector observed an acquaintance purchase the Terraluna, noting it looked acceptable on a very large wrist, though the long-term ownership was unknown.
• A key technical question raised was whether the perpetual calendar features an instantaneous change mechanism, where all indications advance precisely at midnight, similar to the Zeitwerk date function.
• The watch's size is so considerable that it's humorously suggested one might need to alter shirt cuffs to accommodate it, as it's unlikely to fit underneath.
• Despite its practical challenges, the Terraluna is universally acknowledged as an unquestionable masterpiece of horological engineering, best appreciated for its intricate details and movement.
• A visual comparison was made to Seyffert pocket watches, further emphasizing the Terraluna's substantial dimensions and traditional horological presence.