A-5 UDT OG-107 NATO Watch

The Watch

Praesidus crafts timepieces celebrated for their exceptional quality, beauty, and durability. The brand develops diverse collections spanning classic and vintage styles to satisfy every taste. Designed to tell the time with ease and add a final touch of distinction to your style, the A-5 UDT watch delivers reliable timekeeping both on land and underwater. Modern yet rugged, this handsome diving watch draws inspiration from an original USN BUSHIPS model. Paying homage to that legacy, it features a silver-tone case crafted from brushed stainless steel. Round in shape, it presents a diameter of 38 mm and a thickness of 12.50 mm - proportions perfectly suited to men's wrists. The case is topped by a double-dome sapphire crystal that shields the dial from scratches. Its anti-reflective treatment dramatically improves visibility under strong light. The oversized crown at 3 o'clock - the only system that allowed underwater demolition teams to safely maintain water resistance during long dives in World War II - lets you set the hands smoothly and effortlessly. Finally, the screw-down case back ensures water resistance to 20 ATM.

The Dial

This round dial reveals a black background with a matte finish that deepens its appeal. The perimeter is lined with a minute track paired with round indexes and luminescent green Arabic numerals. These, along with the two hands above them, are coated with a Swiss SuperLuminova treatment for strong legibility in low-light conditions. The hands display hours and minutes, while a dedicated seconds hand tracks the seconds. Finally, Praesidus signs its creation at 12 o'clock.

The Movement

This watch is powered by a Swiss automatic movement. More specifically, the Soprod P024 caliber, based on the ETA 2824-2, delivers precise analog display. Featuring 25 jewels, it provides a power reserve of 38 hours and beats at 28,800 vibrations per hour.

The Strap

This model is paired with a military green NATO strap. Comfortable and versatile, it complements a wide range of outfits for any occasion. A simple-to-use grey pin buckle keeps it securely fastened. This strap features a lug width of 20 mm.

Water Resistance

This model offers water resistance up to 20 atmospheres, or 200 meters. Ladies and gentlemen, this watch is ready to go wherever the water takes you! Designed for freediving, it handles high-pressure washers without breaking a sweat. Showers, baths, lap swimming, and freediving - all covered. That said, for scuba diving with tanks, we recommend a timepiece with a higher water-resistance rating. Also, avoid operating the crown while submerged to protect the movement's integrity.