====== Sinn 757 ======
{{wst>image_r|Sinn_757|Sinn 757}}
{{wst>image_r|Sinn_757_UTC|Sinn 757 UTC}}
Model **757** is a [[chronograph]] by [[Sinn]] produced from [[2007]] to present.

===== Overview =====
Introduced at [[Baselworld]] in [[2007]], Sinn designed the 757 to be a "super" [[tool watch]] with a [[pilot's watch]] bezel. The company refers to this range as [[Sinn Instrument Watch|Instrument Watch]] and this model (along with the related [[Sinn 756]]) as "Duochronograph". No model in this range includes the [[small seconds]] subdial typically seen on a [[Valjoux 7750]] watch, though the typical chronograph registers are retained at 6 00 and 12 00.

Duochronograph by [[Sinn]] with [[automatic]] winding, tegimented [[stainless steel]] case with dehumidifying technology, captive, tegimented [[stainless steel]] turning [[bezel]] with minute ratcheting and UV-resistant matte black dial.

This watch combines a whole range of advanced technologies. And according to a [[Chronos]] report (Special Issue 2/2007) it comes at a sensational price-performance ratio //For other manufacturers a watch with these properties would cost many times more.//

From the beginning, a [[UTC]] option was also offered on the model 757. An extra hour hand, independently adjustable, is added. As of [[2008]], Sinn began offering its [[DIAPAL]] oil-free [[escapement]] technology on some 756 and 757 models. These also add a [[UTC]] independently-adjustable hour hand. In [[2009]], a blacked out "S" model was also offered.

The [[Sinn 756]] is a similar model with a smaller case and plain [[bezel]].

===== References =====
  *See Also [[Sinn 756]]

  * 757 (2007-present)
  * 757 DIAPAL (2008-present)
  * 757 II (2019) - limited edition of 75 pieces
  * 757 III (2019) - limited edition of 75 pieces
  * 757 S (2009-2018)
  * 757 S UTC (2009-2018)
  * 757 UTC (2007-present)


<WRAP ud ud_mod>

**Movement:**
  * [[Automatic]] [[chronograph]] movement ([[Valjoux 7750]]), 28,800 A/h
  * [[Nivarox]] 1 [[hairspring]], [[Glucydur]] [[balance wheel]], Beryllium plateau, [[Mainspring]] Nivaflex 1, [[Incabloc]] [[shock protection]]
  * Functional security from –45 °C to +80 °C by Sinn Special Oil 66-228

**Case:**
  * Tegimented [[stainless steel]] case
  * Ø 43.0 mm, height 15.2 mm
  * Pilot's bezel stainless steel, hardened with tegiment technology, captive, bidirectional rotating
  * Nickel-free caseback
  * [[Sapphire crystal]] with [[anti-glare treatment]] on both sides
  * [[Screw-in crown]], tegimented, with crown and with double O-ring seal
  * Pushers tegimented, with integrated pusher protection and D3 pushers technology
  * [[Magnetic field protection]] up to 80.000 A/m
  * Copper sulphate dehumidifying technology
  * [[Waterproof]] to 200 m
  * Safe below atmospheric pressure

**Functions:**
  * Hours, minutes, seconds, date
  * Chronograph 12 hours counter, 30 minutes counter, 60 seconds counter
  * **757 UTC ** [[dual time zone]]

**Dial:**
  * Mat black, UV-resistant
  * Hour indexes and number "12" with special white, long-lasting luminous paint
  * **757 UTC ** [[UTC]] hands [[skeletonized]], framed with yellow daylight color

**Bracelet: **
  * Black Cowhide leather strap with [[tang-type buckle]]; optional bead-blasted tegimented massive band

**Production: **
  * Production [[2007]]-Present
</WRAP>

{{tag>Watch_models Chronographs Sinn_Instrument_Chronograph_models Sinn_Pilot's_Watch_models}}