Sports Watch 105 St Sa W UTC

The Watch

German watchmaker Sinn captivates watch enthusiasts with its aviation-inspired timepieces and contemporary design. Discover the 105 St Sa W UTC - a perfect blend of elegance and sport. Built around a round micro-blasted steel case measuring 41 mm in diameter and 11.9 mm thick, it features a black bezel with anti-scratch treatment. The bidirectional bezel displays a 24-hour time zone, letting you set local time in seconds. The arrow-tipped UTC hand tracking the bezel also functions as a compass. A screw-down crown at 3 o'clock handles hand and date adjustment. The dial is shielded from everyday shocks and scratches by a sapphire crystal with anti-reflective coating. Finally, water-resistant to 20 atmospheres, this watch features a screw-down caseback - and its transparent design lets you admire the movement in action.

The Dial

Round in shape and white in color, this dial lights up your wrist. Two luminescent baton hands and a "Breguet" seconds hand sweep across the hours, minutes, and seconds, moving between time markers represented by baton indices and a railway minute track. A fourth orange hand indicates the second time zone displayed on the bezel. The indices are also treated with a luminescent coating so you can read the time even in the dark. A date window sits at 6 o'clock. The brand's signature appears at 12 o'clock.

The Movement

Precise and reliable, this automatic movement powers the hands and the date window, delivering a quality analog display. Swiss-made, the Sellita SW330-2 caliber features 25 jewels. With a frequency of 28,800 vibrations per hour, it offers a 42-hour power reserve.

The Strap

Completing the timepiece is a black silicone strap that drapes comfortably around your wrist for all-day wear. It fastens with a grey pin buckle. Note that the lug width is 20 mm.

Water Resistance

With a water resistance of 20 atmospheres (200 meters), this model qualifies without hesitation as a dive watch. Our watchmaking experts agree: while it handles showers, baths, lap swimming, freediving, and recreational scuba diving with ease, it is not intended for extreme deep-sea diving where pressure would compromise its seals. For professional divers taking on serious depth challenges, we recommend models rated 30 atmospheres and above. We also advise against operating the pushers or crown while submerged, to maintain a perfect seal.