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Sinn 240 St GZvsBreitling Aviator 8 Automatic Day Date 41

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

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What people say

Owners + reviewers, side by side

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

Sinn 240 St GZ

The Sinn 240 St GZ is praised for its highly legible, contrasting dial and bead-blasted stainless steel case, which benefits from Sinn's hardening treatment. Owners note the crystal is perfect, and the Tegimented PVD bracelet is in near-new condition. However, reviewers flag the inner rotating bezel as slightly wobbly and rattly, and the Sellita SW220-1 movement is described as coarse with rough winding. On balance, owners and reviewers appreciate the Sinn 240 St GZ for its excellent dial legibility and robust case finishing.

From video reviewers

The unique internal tide bezel is a key functional strength. The watch offers 100m water resistance and uses an SW 220-1 movement. Reviewer 7 decided not to keep the watch, indicating a significant personal drawback, though the specific reason was not detailed.

Breitling Aviator 8 Automatic Day Date 41

Owners widely praise the Breitling Aviator 8 Automatic Day Date 41 for its manageable 41mm case size, a welcome departure from larger traditional chronographs, and its simpler, less busy dial design. Reviewers and owners alike highlight its comfortable, slim profile, and the well-engineered, smooth rotating bezel that evokes aviation heritage. The watch is also noted for offering a day-date complication with a fully spelled-out day, a feature uncommon in its price range, and many find its vibrant lume and classic styling make it a great everyday watch. Accuracy is reported as excellent, with one owner noting regulation to within 2 seconds per day. On balance, owners and reviewers rate the Breitling Aviator 8 Automatic Day Date 41 highly for its practical size, refined dial, and compelling day-date complication.

At a glance

19 of 29 specs differ
Diameter
240 St GZ43mm
Aviator 8 Automatic Day Date 4141mm
Power Reserve
240 St GZ38h
Aviator 8 Automatic Day Date 4138h
Water Resistance
240 St GZ100m
Aviator 8 Automatic Day Date 41100m
MSRP
240 St GZ$2,311
Aviator 8 Automatic Day Date 41$4,750

Full specifications

Case

7 specs
Category
Tool
Mechanical
Diameter
43mm
41mm
Thickness
11mm
11.19mm
Lug-to-Lug
21mm
Lug Width
22mm
0mm
Finish
bead-blasted
Stainless steel
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Blue
Indices
Lume
Luminescent
None

Movement

6 specs
Caliber
Sellita SW220-1
Breitling 45
Beat Rate
28,800 vph
0 vph
Jewels
26
0
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Date, Day-Date
Day-Date

Pricing

1 specs
MSRP
$2,311
$4,750
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