For enthusiasts of
Sinn watches, the 103 series holds a special place in their hearts. These pilot chronographs, gracing the brand's collection since the mid-1960s, have become iconic ambassadors for Sinn. But for some collectors, a particular detail adds an extra layer of allure: the hand-wound movement and acrylic crystal found in some early models.
Whether it's a love for tradition, a deeper appreciation for the art of watchmaking, or a more personal connection to the act of daily winding, these features hold a certain romantic charm. Sinn acknowledges this fascination in their latest release, the 103 St Ty Hd, a contemporary homage to those historic forebears.

Courtesy of Sinn
The 103 St Ty Hd stands out with its gleaming stainless steel case, polished to a mirror finish. But take a closer look, and you'll encounter the elements that transport you back in time. The shock-resistant acrylic crystal, a material embraced by Sinn in decades past, sits proudly atop the dial. And beneath that crystal beats a Sellita SW 510 M, a hand-wound mechanical movement, marking the return of this classic complication to the 103 series after a twenty-year absence.
The 103 St Ty Hd isn't just a nostalgic trip; it's a celebration of functionality. The black matte dial features a tri-compax chronograph layout, with stopwatch functions displayed at 3, 6, and 9 o'clock positions. The symmetrical V-shaped arrangement of these counters, in a contrasting matte-silk light yellow, brings a touch of aesthetic flair without compromising clarity.
And speaking of clarity, the red-tipped stopwatch seconds hand and minute counter ensure readability at a glance, especially crucial when tracking elapsed time. The tachymeter scale on the inner bezel caters to another practical need – measuring speed without breaking a sweat.

Courtesy of Sinn
While the 103 St Ty Hd exudes vintage charm, it's no museum piece. This watch is built to withstand the rigors of daily wear. Its low-pressure resistance and water resistance up to 20 bar make it a reliable companion for most activities. The inclusion of Sinn's signature D3-system crown adds another layer of protection against accidental knocks and bumps.
With only 1,000 pieces available, the 103 St Ty Hd is poised to become a coveted collector's item. It represents a unique blend of vintage inspiration, modern functionality, and Sinn's enduring commitment to quality and craftsmanship.
The matte black dial of the 103 St Ty Hd is a study in clean, purpose-driven design. The first things you notice are those distinctive subdials – a stopwatch minute counter at 3 o'clock, an hour counter at 6, and continuous seconds at 9. Their light yellow shade creates bold contrast, and the red accents on the hands add a sporty, utilitarian touch.
Look closer, and you'll see intricate details that enhance both beauty and practicality. The faceted, applied hour markers and hands add a touch of refinement. At night, these components light up thanks to their luminous coating, ensuring you can still tell the time in dimly lit cockpits or moonlit adventures.

Courtesy of Sinn
While we could stare at that dial all day, the soul of the 103 St Ty Hd lies within. Hidden beneath the screw-down caseback beats the hand-wound Sellita SW 510 M. This reliable caliber offers up to 58 hours of power reserve, enough for a long weekend away without your watch winder. Winding a mechanical watch feels…different. It's a physical, tactile experience that forces you to slow down and engage with the mechanics of timekeeping.
The decision to include this specific movement isn't just about nostalgia. There's a purity in a classic chronograph designed for manual operation. With fewer moving parts, there's less that can go amiss. Plus, many watch enthusiasts crave that intimate connection to their timepiece – winding becomes a daily ritual.
The 41mm polished stainless steel case offers handsome looks and proven durability. That gleaming finish adds a touch of refinement, but don't mistake the 103 St Ty Hd for a fussy dress watch. This chronograph is designed for action.
The tachymeter scale, housed on the internal bezel, allows for handy calculation of speeds based on travel time – just the thing for a quick check while cruising down the open road. But remember, that acrylic crystal offers more than just old-school charm. It provides a unique visual clarity. And, yes, it might pick up a few light surface scratches during its lifetime, but those tell a story. Those are marks of wear, of journeys and experiences.
A great-looking watch needs to be tough and reliable too. Sinn delivers on that front with features like their D3-System crown. This technology enhances water resistance through a triple-gasket system, a vital factor when considering this watch's 20 bar pressure resistance. That means you can take it along for a swim without worry.

Courtesy of Sinn
Finally, while the 103 St Ty Hd draws from the past, it also benefits from Sinn's commitment to testing and innovation. Its shock resistance and anti-magnetic properties (per DIN 8309 standards) demonstrate that this watch can weather everyday knocks and electromagnetic interference without missing a beat.
This watch walks a fascinating line. It's designed for those who appreciate vintage design and the heritage of pilot's chronographs. Yet, at the same time, it isn't a mere replica. The functionality, reliability, and build quality meet even the most modern standards. If you love tool watches with a classic bent, a mechanical chronograph appeals to your sense of practicality, and if you find beauty in purpose-built machines, this Sinn makes a strong case.

Courtesy of Sinn
It'll happily fit within a watch collector's rotation, thanks to its vintage DNA and limited edition of 1,000 pieces. However, don't relegate it to a purely "special occasion" slot. This chronograph begs to be worn, tested, and enjoyed out in the world where it shines.
The Sinn 103 St Ty Hd Classic Hand-Wound Chronograph is a reminder that nostalgia and contemporary functionality can coexist beautifully. It's a watch with undeniable character, one that invites closer inspection and offers a delightful sensory experience thanks to that hand-wound movement. Is it for everyone? Of course not. If you want a quartz "set it and forget it" timepiece, look elsewhere. But if you find joy in the ritual of winding a watch, the click of a stop-start button, and the sweep of a chronograph hand, this Sinn may well deserve a place on your wrist.