====== Sinn 6099 Frankfurt Financial District Watch ======
The **Model 6099 Frankfurt Financial District Watch** is an [[automatic chronograph]] from [[Sinn]] produced since [[2014]] and is a larger version of the original [[Sinn 6000|Model 6000]] and is the eighth model in the [[Sinn Frankfurt Financial District]] line. This was the first large [[chronograph]] model since the original [[Sinn 6000|Model 6000]].

===== Overview =====
In [[1999]], [[Sinn]] added a model to celebrate the company's home city of Frankfurt and to appeal to the business and finance professionals there. The Frankfurt Financial District Watch was designed to reflect the sensibilities of the German businessman, with clean utilitarian lines, a restrained black dial, and stainless steel case. And, reflecting the international appeal of Frankfurt, the Frankfurt Financial District Watch was designed to show the time in multiple timezones. The company suggested that it could keep track of the time in New York and Tokyo, two other major stock exchanges, while showing the local time in Frankfurt.

The original [[Sinn 6000|Model 6000 Frankfurt Financial District Watch]] used a 38.5 mm case, which was large for the time but seemed increasingly diminutive 10 years later. In [[2014]], Sinn launched a larger version, **Model 6099**, with a 41.5 mm case. Apart from the larger case, this model differs in using a [[Sellita]] [[SW 500]] [[ebauche]], a [[D3]] [[crown]] in addition to the [[pusher]]s, and being .5 mm thinner. The [[automatic chronograph]] movement is modified to add an independently adjustable hand for a second timezone. The third timezone is read using the internal rotating bezel. Both of these use a 12-hour scale rather than the 24-hour scale used on many other [[GMT]] watches.

Unlike the original, which included several precious metal versions, Model 6099 has only been issued in [[stainless steel]]. In addition to the original black dial version, **Model 6099 B** features a blue bezel, dial, and subdials in an electroplated sunburst patter. This is a limited edition of 200 pieces launched in [[2019]] along with the new [[Sinn 6012|Model 6012]] moon phase model.

===== See Also =====
  * [[Sinn Frankfurt Financial District]]
  * [[Sinn 6096]], a time-only version
  * [[Sinn 6000]], the smaller 38.5 mm original
  * [[Sinn 6052]] and [[Sinn 6012]], with [[full calendar]] and [[moon phase]]

===== References =====
  * Sinn 6000 (2014-present) - [[Stainless steel]] case, black dial
  * Sinn 6000 B (2019) - [[Stainless steel]] case, blue dial, limited edition of 200 pieces


<WRAP ud ud_mod>

**Movement:**
  * [[Self-winding]] [[chronograph]] movement [[SW 500]], modified with 2 additional time-zones, 28,800 A/h
  * [[Nivarox]] 1 [[balance spring]], [[Glucydur]] [[balance wheel]], beryllium plateau, [[mainspring]] in Nivaflex 1
  * [[Incabloc]] [[shock protection]]
  * [[Perlage]]-finished [[bridge]]s, [[blued]] screws
  * On the [[rotor]] the Frankfurt skyline is engraved by hand
  * [[Antimagnetic]] according to DIN 8309
  * [[Shock proof]] according to DIN 8308

**Case:**
  * [[Stainless steel]], upper side and caseback polished, flanks [[satin-finished]]
  * Ø 41.5 mm, H 15 mm
  * [[Sapphire crystal]], [[antireflective]] on both sides
  * Caseback screwed, with [[sapphire crystal]], [[antireflective]] inside
  * [[Crown]] with double o-ring gasket
  * Pushers with double o-ring gasket and pusher protection
  * [[Waterproof]] to 10 bar
  * Safe below atmospheric pressure

**Dial:**
  * Black galvanised dial, with [[solar grinding]] 
  * [[Rhodinated]]e appliques coated with white [[luminous]] colour
  * Hours- and minutes hand [[skeletonized]], coated with [[luminous]] colour
  * Central [[hacking seconds]] hand, [[UTC]] hands, hours and minutes stop hand [[rhodinated]] 

**Functions:**
  * Hours, hours of [[dual time-zone]]
  * Inner ring with third time-zone minute
  * [[Small second]] with [[hacking seconds]]
  * [[Chronograph]] 12-hours /30-minutes /60-seconds counter

**Bracelet:**
  * 2 wristbands calf leather strap and solid metal bracelet

**Accessoires:**
  * Wooden case with watchband replacement tool kit, spare spring bars, Eschenbach watchmaker's loupe, cleaning cloth and Frankfurt Finance District booklet

**Warranty: **
  * 2 years

**Production:**
  * Production [[2014]]-Present
  * Predecessor [[Sinn 6000]]
</WRAP>

{{tag>Watch_models Chronographs Worldtimer_watches Sinn_Frankfurt_Financial_District_models}}