Sinn

Chronograph 103 St Sa

Reference Number :

103.061

Series : Pilots Watch

Retail: $2,954

(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 Sinn 103 St Sa is where form elegantly follows function. This isn't just a watch; it's a cockpit instrument reborn for the wrist. The polished stainless steel case, at a classic 41mm, houses the incredibly reliable Concepto C99001 automatic movement, visible through the sapphire crystal case back. The matte black dial, with its luminescent-coated numerals and hands, ensures readability in any situation, echoing the clarity of aircraft instrumentation. The captive pilot's bezel is more than a design touch; it's ready to time events with a precise, satisfying click. This chronograph is water resistant to 20 bar which will let its user dive with it. With its screw-down crown and pushers, this isn't just a pretty face; it's a robust tool, designed to withstand considerable pressure. The 103 St Sa is the best partner for any pilot or watch geek.

DescriptionThe Sinn 103 St Sa, identified by reference 103.061, is a pilot's chronograph meticulously engineered for optimal performance and legibility. Its construction centers around a 41mm diameter case crafted from polished stainless steel, demonstrating a blend of durability and refined aesthetics. The case thickness measures 17.2mm, contributing to the watch's substantial presence on the wrist. A captive pilot's bezel, featuring minute ratcheting, encircles the dial and offers enhanced functionality for timing events. This bezel is designed to be securely attached, preventing accidental detachment. The total weight, excluding the strap, is 88 grams.

Powering the 103 St Sa is the Concepto C99001, a self-winding mechanical movement. This caliber features 25 bearing jewels, minimizing friction and enhancing the longevity of the internal components. It operates at a frequency of 28,800 semi-oscillations per hour (4 Hz), providing a smooth sweep of the seconds hand. The C99001 incorporates a seconds stop function, also named a hacking-seconds feature, allowing for precise time-setting. The movement is also designed to be anti-magnetic, conforming to DIN 8309 standards, thereby resisting the disruptive effects of magnetic fields on timekeeping accuracy. The watch displays hours, minutes, and subsidiary seconds, alongside a date and day of the week display. Naturally, given its chronograph designation, the watch offers stopwatch functionality. The screw-fastened case back, coupled with a screwable crown and push-pieces, ensures the watch meets the water-resistance criteria specified in DIN 8310. It achieves a pressure resistance of 20 bar (equivalent to approximately 200 meters of water depth) and is also resistant to low-pressure environments. The watch features a highly domed scratch resistent sapphire crystal glass, with antireflective coating on both sides.

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 BackSapphire Crystal

CrownScrew Down