Sports Watch 105 St Sa UTC

The Watch

Step into the world of Sinn, the German watchmaker pushing the boundaries of precision and style with aviation-inspired timepieces. The new 105 St Sa UTC combines athletic design with everyday elegance. Its round micro-blasted steel case measures 41 mm in diameter and 11.9 mm thick - decidedly bold proportions. A black anti-scratch bezel sits on top. Bidirectional, it features 24-hour Arabic numerals for a second time zone, letting you adjust local time in seconds. The arrow-tipped UTC hand can also double as a compass when the sun's position is known. True to watchmaking tradition, the screw-down crown for hand and date adjustment is positioned at 3 o'clock. The dial is protected from everyday shocks and scratches by a sapphire crystal with anti-reflective coating. Finally, the screw-down caseback ensures water resistance to 20 ATM (200 meters). Its transparent display lets you watch the movement in action.

The Dial

This timepiece sports a round, black dial. At its center, two luminescent hands and a slim seconds hand sweep across the hours, minutes, and seconds, moving between luminescent indices and a railway minute track. A fourth orange hand points to the second time zone on the bezel. A date window at 6 o'clock keeps you up to date. The brand's signature sits just below the 12 o'clock index.

The Movement

A Swiss-made automatic movement beats at the heart of this timepiece. The Sellita SW330-2 caliber drives the hands and date window with precision and reliability. Featuring 25 jewels, it runs at a frequency of 28,800 vibrations per hour with a 50-hour power reserve.

The Strap

Pick the strap that suits your style. Choose from three completely different looks: the black cowhide leather strap for an elegant finish; the solid stainless steel bracelet for a sporty, modern edge; or the black integrated silicone strap - included in the box - fastened with a large micro-blasted stainless steel folding clasp for your next adventure. The leather strap closes with a pin buckle, while the steel bracelet features a folding clasp. Lug width: 20 mm.

Water Resistance

With a water resistance rating of 20 atmospheres (200 meters), this watch is ready for serious aquatic adventures. It's built for freediving and handles showers, baths, and lap swimming effortlessly. For scuba diving with tanks, we recommend a higher water resistance rating. Also, avoid operating the crown or pushers while submerged to keep the movement fully protected.