The 6030 Frankfurt Financial District Watch IV is an automatic chronograph produced by Sinn from 2007 through 2015. It is the fourth model in the Sinn Frankfurt Financial District line and one of a trio of smaller 34 mm watches introduced that year. It is the second chronograph model in the line and the first without a GMT hand.

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.

This Model 6030 was part of a trio of smaller 34 mm watches that joined the lineup in 2007. The 6030 “IV” chronograph and 6033 "V" three-hand watch were introduced early in the year, neither of which featured the GMT hand that had defined the “Frankfurter” family from the start. Sinn simply did not have a suitably-small GMT movement. It was almost 2008 before Sinn introduced the Model 6036 "VI" World Time.

Unlike Models 6033 and 6036, which used a crown at 2 00 for the rotating inner bezel and moved the winding crown to 4 00, Model 6030 had the traditional “Frankfurter” layout. A crown at 10 00 rotates the inner second timezone bezel, with chronograph pushers and winding crown in the traditional 2-3-4 locations.

Most Sinn chronographs used the Valjoux 7750 or Lemania 5100 which located the chronograph registers and small seconds at 6, 9, and 12. But Model 6030 used the ETA 2094 with a 3-6-9 subdial arrangement like the original Model 6000. This is one of the reasons for a strong family resemblance among all these models. The movement, visible through a sapphire display caseback, features a “bull and bear” motif.

Note that this watch is officially called “Frankfurter Finanzplatzuhr IV” (“Frankfurt Financial District Watch IV”).

The 34 mm Financial District watches were retired in 2015 (Model 6030 “IV”), 2016 (Model 6033 “V”), and 2017 (Model 6036 “VI”). Although there is no direct replacement for Model 6030, Model 6000 is a similar 38.5 mm model and remains available.

• Sinn Frankfurt Financial District
• Sinn 6000, the original chronograph
• Sinn 6033, the 34 mm dual time watch
• Sinn 6036, the 34 mm world time watch

• Sinn 6030 (2007-2015) - Stainless steel case, black dial and bezel

• Das ZEITGEFÜHL-Uhrenbuch; Autor Gerd-Lothar Reschke; ISBN 3-938607-61-0

• Sinn-Bedienungsanleitung with Modellgeschichte and ausführlichen Hintergrundinfos