Side by side

Seestern S443 Column Wheel ChronographvsSeiko Prospex Sea Save the Ocean Special Edition

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

At a glance

18 of 29 specs differ
Diameter
S443 Column Wheel Chronograph40mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
S443 Column Wheel Chronograph45hh
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
S443 Column Wheel Chronograph50m
Prospex Sea Save the Ocean Special Edition200m
MSRP
S443 Column Wheel Chronograph$10
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
40mm
45mm
Thickness
13mm
13.2mm
Lug-to-Lug
48.6mm
47.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

4 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Pink
Black
Indices
3D
Applied
Lume
Super BGW9
LumiBrite on hands, index(es) and bezel

Movement

6 specs
Caliber
Seagull ST1901
4R36
Type
Manual
Automatic
Beat Rate
3 vph
28,800 vph
Power Reserve
45hh
41h
Jewels
21
24
Complications
Chronograph, Column Wheel
None

Pricing

1 specs
MSRP
$10
$625

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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 Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

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