Davosa Watch Ternos Medium Automatic 16619820. The Ternos Medium has the very same quality characteristics of the Ternos Ceramic; it only differs in its dimensions. The case has a diameter of 36.5 mm and a height of 11.8 mm, and is thus more suited to a narrower wrist. Its components include a scratch-resistant, transparent, anti-reflective sapphire crystal; a meticulously crafted stainless steel case capable of withstanding pressures of 20 ATM; a precise Swiss DAV 3021 automatic movement, ensuring long-lasting, functional reliability. The design is very subtle for a sporty divers watch and truly deserves the classic timeless attribute the Ternos not only cuts a fine figure over a wetsuit, but looks stylish in combination with a single-breasted business suit.