Sinn

240 St

Reference Number :

240.010

Series : Pilots Watch

Retail: $2,247

(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 240 St isn't just another pilot's watch; it's a testament to purposeful design, a companion built for legibility and resilience. The matte black dial under the anti-reflective sapphire is like looking into a clear night sky, the luminous hands and indices, your steadfast stars. Inside ticks the reliable SW 220-1, beating with steady precision. The internal rotating bezel, a distinctive touch controlled by that extra crown, offers a sense of tactile engagement absent from digital time trackers. The bead-blasted steel of the case and that weighty feel on your wrist speak of a well-crafted instrument, designed not just for looking at, but for using. It's the kind of watch that invites adventure, a subtle nod to aviation history wrapped around your wrist, with the added practicality of date and day display to keep you anchored in the present, whether that day is in English or auf Deutsch. It's a tool, refined.

DescriptionThe Sinn 240 St, reference 240.010, is a timekeeping instrument engineered with a focus on functionality and durability. Its core is the SW 220-1, a self-winding mechanical movement. This caliber incorporates 26 bearing jewels and operates at a frequency of 28,800 semi-oscillations per hour, delivering precise time measurement. It includes a seconds stop function, facilitating accurate time setting, and meets the anti-magnetic criteria defined by DIN 8309. The movement is encased within a 43mm diameter housing constructed from bead-blasted stainless steel. This surface treatment enhances scratch resistance while minimizing reflections. The case back is screw-fastened, contributing to the overall structural integrity. Case thickness measures 11mm, and it includes a 22mm band lug width.

The watch's design incorporates Sinn's D3-System for the crowns, improving water resistance and operational smoothness. An internal pilot's bezel, controlled by a secondary crown, permits tracking of elapsed time intervals and features a luminous triangular key mark for visibility. The front of the watch is protected by a sapphire crystal that has been treated with an anti-reflective coating on both the interior and exterior surfaces, optimizing legibility under varied lighting conditions. The 240 St has a matte black dial with indices coated in a luminescent compound. Also, the hour and minute hands are filled with the same luminescent material, guaranteeing low-light readability. Furthermore, the watch presents both the date and day of the week, accessible through adjustments made via the crown. The day display is adjustable in German or English. The design meets DIN 8310 standards for water resistance, confirmed to a pressure of 10 bar, and possesses resilience to low-pressure environments. Total weight, excluding the strap, is 85 grams.

GenderMen

SignaturesSinn

Country of OriginGermany

Case Size43 mm

MovementAutomatic

CaliberSW 220-1

FunctionsHours, Minutes, Seconds, Date, Day, Pilots Bezel

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSolid

Dial ColorBlack