Side by side

Praesidus Neptune 44vsSeiko Prospex SPEEDTIMER Mechanical

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

Neptune 44
PraesidusNeptune 44
MSRP $550
Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995

At a glance

15 of 29 specs differ
Diameter
Neptune 4444mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
Neptune 4440h
Prospex SPEEDTIMER Mechanical72h
Water Resistance
Neptune 44200m
Prospex SPEEDTIMER Mechanical200m
MSRP
Neptune 44$550
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
44mm
39.5mm
Thickness
12mm
Lug-to-Lug
44.5mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

5 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Patina
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9039
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$550
$995

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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 Neptune 44

The dial details and historical elements, including fragments from Iwo Jima battlefield relics, are praised. The bracelet exhibits rattle. Reviewers disagree on the use of faux patina on the dial.

Seiko Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

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