Side by side

Sinn 6099vsSinn 903 St II

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

6099
Sinn6099
MSRP $4,990
903 St II
Sinn903 St II
MSRP $3,942
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Sinn 6099

The Sinn 6099 is praised for its unique, non-generic look and perceived high build quality. Owners report the 41.5mm case wears large due to the absence of an external rotating bezel, despite the watch offering three 12-hour time zones and a chronograph. Overall, owners rate the Sinn 6099 highly for its distinctive aesthetic and robust construction.

Sinn 903 St II

The Sinn 903 St II is widely praised for its robust build quality, over-engineered feel, and strong value proposition, featuring 200 meters of water resistance and a La Joux-Perret L110 column-wheel chronograph movement. Owners appreciate the hybrid ceramic lume and the practical functionality of the slide rule operated by the bezel. However, reviewers note that the busy slide-rule dial can make time-reading challenging, with some finding the chronograph hand's placement over the "12" numeral less refined. On balance, owners and reviewers rate the Sinn 903 St II highly for its exceptional build quality and value, particularly its robust water resistance and functional slide rule at its price point.

At a glance

9 of 29 specs differ
Diameter
609941.5mm
903 St II41mm
Power Reserve
609942h
903 St II60h
Water Resistance
6099100m
903 St II200m
MSRP
6099$4,990
903 St II$3,942

Full specifications

Case

4 specs
Diameter
41.5mm
41mm
Thickness
15mm
14.5mm
Finish
polished
polished / satinized
Water Resistance
100m
200m

Crystal & Dial

2 specs
Indices
Applied
Lume
Luminescent
None

Movement

2 specs
Caliber
LJP L 110
LJP L110
Power Reserve
42h
60h

Pricing

1 specs
MSRP
$4,990
$3,942
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