Side by side

Seestern S443 Column Wheel ChronographvsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition

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

At a glance

17 of 29 specs differ
Diameter
S443 Column Wheel Chronograph40mm
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm
Power Reserve
S443 Column Wheel Chronograph45hh
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h
Water Resistance
S443 Column Wheel Chronograph50m
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m
MSRP
S443 Column Wheel Chronograph$10
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition$3,000

Full specifications

Case

5 specs
Diameter
40mm
42.5mm
Thickness
13mm
15.1mm
Lug-to-Lug
48.6mm
50mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

5 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Pink
Black
Indices
3D
Applied
Lume
Super BGW9
LumiBrite on hands and index(es)

Movement

6 specs
Caliber
Seagull ST1901
8R46
Type
Manual
Automatic
Beat Rate
3 vph
28,800 vph
Power Reserve
45hh
45h
Jewels
21
34
Complications
Chronograph, Column Wheel
None

Pricing

1 specs
MSRP
$10
$3,000

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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.

Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition

The Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition is praised for its well-executed heritage inspiration, clean dial, and balanced design, with its in-house caliber 8R48 noted as a solid movement. Owners appreciate the Zaratsu polishing and the column wheel and vertical clutch on the 8R48 movement, considering it good value. Some find the date wheel deep-set and the bracelet lacking micro-adjustments. The 42.5mm x 15.1mm case size may be large for some wrists. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition highly for its heritage design and solid in-house movement.

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