Sinn

105 St Sa

Reference Number :

105.010

Series : Tool Watch

Retail: $1,544

(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 105 St Sa is a no-nonsense tool watch that secretly loves to show off its technical prowess. The bead-blasted case and captive, Tegimented bezel whisper "durability," while that sapphire crystal case back practically begs you to admire the SW 220-1 movement ticking away inside. Forget flashy – this watch is all about understated capability. The matte black dial, punctuated by those crisp, luminescent hands and indices, is pure function. The 105 St Sa's party trick? The 12-hour bezel, turning it into a stealthy GMT. It is as if the engineers that designed it wanted a watch with a secret, something that only other enthusiasts of the hobby would notice and realize the true value of. The splash of orange is a nice touch. This is the type of thing you wear while everyone else is trying to impress with the usual suspects.

DescriptionThe Sinn 105 St Sa, reference 105.010, is a meticulously engineered timepiece. Its case, with a diameter of 41mm and thickness of 11.9mm, is constructed from bead-blasted stainless steel, offering a robust yet refined aesthetic. The screw-fastened case back features a transparent sapphire crystal, treated with an anti-reflective coating on the interior, permitting clear observation of the movement. The screwable crown aids to ensure that the case and watch meets the technical requirements for water resistance, as laid out in standard DIN 8310. The entire watch is water and pressure resistance up to 20 bar, and it is confirmed to be low pressure resistant. Without the strap the watch weighs in at 73 grams. The band lug width is 20mm.

Powering the 105 St Sa is the SW 220-1 self-winding mechanical movement. It features a seconds stop function. This caliber incorporates 26 bearing jewels and operates at a frequency of 28,800 semi-oscillations per hour, ensuring timekeeping precision, and is anti-magnetic in accordance with DIN 8309 standards. The dial is a matte black, which contrasts with the indices and hour, minute, and second hands, all coated with luminescent material for legibility in low-light situations. A date and day of the week display are included; these are displayed in a choice of either English or German text. A standout functional attribute is the bidirectional multifunctional rotating bezel, made captive to stop it from getting knocked off. The bezel features minute ratcheting and is finished with Sinn's Black Hard Coating, applied over a TEGIMENT Technology base, improving durability. This bezel facilitates a second time zone display on a 12-hour format, in addition to standard time measurement. The front crystal is produced from Sapphire glass that has been treated to be anti-reflective on both sides.

GenderMen

SignaturesSinn

Country of OriginGermany

Case Size41 mm

MovementAutomatic

CaliberSW 220-1

FunctionsHours, Minutes, Seconds, Date, Day

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal

CrownScrew Down