This design draws inspiration from an era when timepieces were cherished for a lifetime. In the 1940s, military watches adhered to distinct aesthetic principles. They featured a muted metal casing to prevent any glint, a dial with luminous hands and numerals for effortless time-reading in the darkness of night, and a simple yet highly accurate and durable movement. The timeless field watch, identified as reference 31101, adheres meticulously to the specifications outlined on page 31 of military standard MIL-W-46374F, hence the inclusion of the first two digits in the watch's reference. It boasts a robust 316L surgical grade stainless-steel case, available either untreated or with a sleek black DLC coating. The watch features a dial and hands coated with "old radium" Luminova®, ensuring luminosity in low-light conditions, and a domed sapphire crystal with a five-layer anti-reflective coating. Its Seiko NH-38 automatic movement, equipped with a hacking function (pull the crown to stop the movement for synchronization with another timepiece), features 24 jewels, and has a generous 41-hour power reserve.