Side by side

Praesidus A-5 UDTvsSeestern S443 Column Wheel Chronograph

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

A-5 UDT
PraesidusA-5 UDT
MSRP $645

At a glance

16 of 29 specs differ
Diameter
A-5 UDT38mm
S443 Column Wheel Chronograph40mm
Power Reserve
A-5 UDT40h
S443 Column Wheel Chronograph45hh
Water Resistance
A-5 UDT200m
S443 Column Wheel Chronograph50m
MSRP
A-5 UDT$645
S443 Column Wheel Chronograph$10

Full specifications

Case

5 specs
Category
Diver
Chronograph
Diameter
38mm
40mm
Thickness
13mm
Lug-to-Lug
48.6mm
Water Resistance
200m
50m

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Blue
Pink
Indices
Applied
3D
Lume
None
Super BGW9

Movement

6 specs
Caliber
Miyota 9015
Seagull ST1901
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
45hh
Jewels
25
21
Complications
None
Chronograph, Column Wheel

Pricing

1 specs
MSRP
$645
$10

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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.

Praesidus A-5 UDT

The Praesidus A-5 UDT is noted for its historically inspired design, featuring an oversized crown cap and chain that pays homage to WW2 canteen watches. Reviewers highlight its functional dial with embossed, Super-LumiNova filled numerals and markers for legibility, alongside 200m water resistance and a 38mm brushed stainless steel case. Some owners find the 11.7mm thickness problematic, describing it as disproportionately tall. The watch's ana/digi functionality and connection to special operations forces are also praised. On balance, owners and reviewers appreciate the Praesidus A-5 UDT for its unique historical design elements and functional dial.

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.

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