Sinn 104 SA I W Leather Watch

The Watch
Renowned as a specialist in tool watch manufacturing, watchmaker Sinn has proven time and again that bold, sport-driven design is its forte. From crafting navigation clocks to aviation chronographs and even a watch launched into space, this watchmaking house rises to every challenge. Inspired by pilot's watches, this timepiece features a polished stainless steel case measuring 41 mm in diameter - a perfect fit for style-conscious men. The case is topped by a black bidirectional graduated bezel, letting you track your sporting achievements with precision. The bezel frames a bright white dial displaying the hours, protected by a sapphire crystal that resists scratches and external shocks. The crystal features anti-reflective treatment on both sides for outstanding legibility. The automatic movement powering the dial's time indicators is housed at the back of the watch - admire the mechanical intricacy through the transparent screwed case back. Bring it to life by activating the crown positioned at 3 o'clock.

The Dial
Defined by everything that drives a pilot's watch, this dial delivers effortless readability in any condition. The time displays in black on white during the day and illuminates in low-light settings thanks to luminescent inserts on all three hands - hours, minutes, and seconds - as well as on the hour indices. A minute railroad track runs along the dial's perimeter, letting you track passing time with precision. The German watchmaker proudly marks its heritage at 6 o'clock, a nod to quality and durability. The house signature appears at 12 o'clock, while a dual-window display at 3 o'clock shows the date and day.

The Movement
An automatic movement brings the three hands and dual display window to life. The Sellita-signed caliber SW220-1 delivers all the excellence of Swiss watchmaking expertise. It operates at an oscillation frequency of 28,800 vibrations per hour and offers hours, minutes, seconds, and date functions. Power reserve is 38 hours.

The Strap
A stunning strap wraps around the watch case, soon to grace the wrists of discerning men. In brown leather with a distressed finish, it pairs perfectly with the watch's vintage aesthetic. White contrast stitching adds a refined touch against the warm brown leather. The strap fastens with a silver-tone pin buckle and features a 20 mm lug width.

Water Resistance
This model offers water resistance up to 20 atmospheres - 200 meters. Gentlemen and ladies, this is a watch built to keep up with your deepest aquatic adventures! Designed for freediving, it holds its own when you're working with high-pressure washers too - no need to worry about the water. Showering, bathing, lap swimming, and freediving are all fair game. That said, for scuba diving with tanks, we recommend a timepiece with a higher water resistance rating. Important: avoid operating the crown or pushers while submerged to protect the integrity of the movement.