Dressed with a blue dial and measuring 41.5mm across its round case, this Seamaster Aqua Terra strikes a balance between everyday versatility and refined detail. A scratch-resistant sapphire crystal protects the dial, while a fixed bezel and screw-in crown contribute to a water resistance rating of 150m/500ft.
Inside beats an automatic movement rated as a chronometer and bearing COSC certification, a mark of precision that places it among a select tier of regulated timepieces. The stainless steel case back houses the movement securely, and the leather strap — finished in a brushed and polished treatment — fastens with a push-button folding clasp for a secure and comfortable fit.
Reference 231.13.42.21.03.001 is listed in new/unworn condition, representing the Aqua Terra line's characteristic blend of nautical heritage and contemporary wearability.