Side by side

Seestern S443 Column Wheel ChronographvsZelos Skyraider 40 Skeleton

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

Skyraider 40 Skeleton
ZelosSkyraider 40 Skeleton
MSRP $1,999

At a glance

13 of 29 specs differ
Diameter
S443 Column Wheel Chronograph40mm
Skyraider 40 Skeleton40mm
Power Reserve
S443 Column Wheel Chronograph45hh
Skyraider 40 Skeleton40h
Water Resistance
S443 Column Wheel Chronograph50m
Skyraider 40 Skeleton50m
MSRP
S443 Column Wheel Chronograph$10
Skyraider 40 Skeleton$1,999

Full specifications

Case

4 specs
Category
Chronograph
Skeleton
Thickness
13mm
8.2mm
Lug-to-Lug
48.6mm
40mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

3 specs
Dial Color
Pink
Ti Damascus LE
Indices
3D
Applied
Lume
Super BGW9
None

Movement

5 specs
Caliber
Seagull ST1901
Swiss Skeletonised Marvin 700
Beat Rate
3 vph
28,800 vph
Power Reserve
45hh
40h
Jewels
21
25
Complications
Chronograph, Column Wheel
None

Pricing

1 specs
MSRP
$10
$1,999

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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.

Seestern S443 Column Wheel Chronograph

Owners widely praise the Seestern S443 Column Wheel Chronograph for its affordable mechanical chronograph movement with a column wheel, derived from the Venus 175. Some owners appreciate the watch's overall aesthetic, with one noting a preference for the black-yellow variant. The ST19 movement's execution is generally well-regarded, though one owner found the chronograph minute counter could stick, a common issue that may require a watchmaker, while another noted sticky chrono pushers after patina development on the bronze case. The ST19 movement lacks an hours totalizer, and its assembly is not as refined as luxury timepieces, though comparable to entry-level automatics. One owner finds the "hand winding" script font on the dial to be a design flaw. Overall, owners rate the Seestern S443 Column Wheel Chronograph highly for its value as a column wheel chronograph, despite minor assembly and functional quirks.

Zelos Skyraider 40 Skeleton

The Zelos Skyraider 40 Skeleton is noted for its skeletonized dial and the use of BGW9 and C3 Super-LumiNova for legibility. It is powered by a manual-wind ETA 6498 movement, offering a 44-hour power reserve. On balance, the Zelos Skyraider 40 Skeleton is seen as a cool-looking option, though availability is a factor.

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