This 1941 Eterna captures that basic yet functional aesthetic that defined late-1930s watch design – what we now call Bauhaus, even though the movement itself had ended a few years earlier. The influence is clear: clean typography, sharp geometry, and zero excess. The 31mm stainless steel case has long, slim lugs and flat surfaces that give it a footprint similar to a modern Nomos Tangente, decades before Nomos existed. The dial is balanced and legible, with minimalist Arabic numerals, a small seconds at six, and blue steel hands. Inside is the Eterna Caliber 520, the company’s first movement designed specifically **for** men’s watches. Released in 1941, it’s a simple 15 jewel simple manually wound caliber that marked an important step in Eterna’s evolution. **Condition:** Honest vintage condition. The dial shows attractive patina throughout, hands retain their original bluing, and the case edges remain crisp. The serial number in the movement dates the watch to 1941. Please see the pictures for full condition and clarity.  **Case Size:** 30.5 x 36 mm stainless steel case with a thickness of 9.9mm and a 16mm lug width. **Movement:** Eterna 520, manual wind with 15 jewels, 42-hour power reserve, and 18,000 bph. Service history is unknown, but everything is working as it should. **Price:** Asking $250. Please add $20 for worldwide shipping. Payment methods include Wise, ACH transfer, Revolut, Bitcoin (On-Chain or Lightning), or PayPal G&S for buyers with solid references. Add +6% for currency conversion fees on the latter. I’m located in Portugal, but worldwide shipping isn’t an issue.  Established seller with over 220 transactions – buy with confidence! Make sure to follow me on Instagram (@daily.worn) to check out the newest additions. Happy to answer serious inquiries. No trades, no lowballs. [Pictures](https://imgur.com/a/fpLrO5V) [Timestamp](https://imgur.com/a/GHetW6y)