Side by side

Fortis Marinemaster M-44vsSeiko Prospex SPEEDTIMER Mechanical

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

Marinemaster M-44
FortisMarinemaster M-44
MSRP $5,120
Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995

At a glance

14 of 29 specs differ
Diameter
Marinemaster M-4444mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
Marinemaster M-4438h
Prospex SPEEDTIMER Mechanical72h
Water Resistance
Marinemaster M-44300m
Prospex SPEEDTIMER Mechanical200m
MSRP
Marinemaster M-44$5,120
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
44mm
39.5mm
Thickness
14mm
12mm
Lug-to-Lug
44.5mm
Lug Width
22mm
20mm
Water Resistance
300m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW220-1
6R55
Power Reserve
38h
72h
Jewels
26
24

Pricing

1 specs
MSRP
$5,120
$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.

Fortis Marinemaster M-44

The Fortis Marinemaster M-44 is praised for its excellent build quality and wearability, featuring a highly legible dial and a COSC-certified Kenissi-based movement that ran at 0 seconds per day. Owners appreciate its 70-hour power reserve and the inclusion of multiple straps and a deployant buckle, noting its gorgeous appearance and great wrist presence. A minor point raised is the 21mm lug width, with a wish for it to be 22mm. The Fortis Marinemaster M-44 is priced at $4,150. Overall, owners and reviewers rate the Fortis Marinemaster M-44 highly for its robust specifications and comfortable wearability at its price point.

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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