Sinn

Chronograph 103 St

Reference Number :

103.031

Series : Pilots Watch

Retail: $2,290

(As of: 02/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Sinn. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThe 103 St is a time machine straight out of an old-school cockpit, except it’s strapped to your wrist! This isn't just some fancy accessory; it's a nod to Sinn's legacy of building tough-as-nails instruments. The 41mm steel case? Rock solid. The matte black dial, luminous hands, and crisp indices? Perfect at any time. And yeah, that pilot's bezel and chronograph? Consider them your co-pilots for any adventure, whether you are timing your coffee brew or, you know, navigating the skies, this is a no-frills tool watch. The anti-magnetic shielding? Just means this watch laughs in the face of modern tech that would mess with lesser timepieces. The day-date function? Keeps your grounded, even at 30,000 feet, you know, when you are flying a plane. This is more than a watch, it a statement.

DescriptionThe Sinn 103 St, reference 103.031, represents a traditional pilot's chronograph design, drawing direct inspiration from the brand's heritage in producing cockpit instrumentation. The watch's core functionality is driven by the Concepto C99001, a self-winding mechanical movement. This caliber features 25 bearing jewels and operates at a frequency of 28,800 semi-oscillations per hour (4 Hz), contributing to smooth and accurate timekeeping. The C99001 includes a seconds stop function, which permits precise time-setting by halting the seconds hand when the crown is pulled out. The movement is additionally engineered to provide resistance to magnetic fields, meeting the specifications outlined in DIN 8309 standards.

The 103.031 has a polished stainless steel case with dimensions tailored for usability and presence. Case diameter measures 41mm. The overall thickness is approximately 15.9mm, a size that accommodates the chronograph mechanism, and offers readability. The watch uses a traditional domed acrylic glass as default. A screw-fastened case back is present, contributing to the overall structural integrity. The crown is screwable, a requirement for enhanced water resistance. Band lug width measures a standard 20mm, allowing for diverse strap options. The Sinn 103.031 is rated water and pressure-resistant to 20 bar, an approximate depth of 200 meters, conforming to the DIN 8310 standard for water resistance. Furthermore, it exhibits resistance to low-pressure environments. The functions incorporated into the watch design include the display of hours, minutes, and subsidiary seconds. Additional displays are featured, a date window and a day-of-the-week window. The core chronograph complication measures elapsed time. Finally, a pilot's bezel with a luminous key mark enhances timing options.

GenderMen

SignaturesSinn

Country of OriginGermany

Case Size41 mm

MovementAutomatic

CaliberConcepto C99001

FunctionsChronograph, Hours, Minutes, Seconds, Date, Day

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSolid

CrownScrew Down