Side by side

Marathon CeraShell Pilot's NavigatorvsSeiko Prospex SPEEDTIMER

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon CeraShell Pilot's Navigator

Owners widely praise the Marathon Pilot's Navigator for its exceptional accuracy, with sources citing its ETA F06.412 quartz movement as keeping time within 10 seconds per year. Reviewers and owners alike highlight its classic pilot's watch design, comfortable 41mm steel case, and the constant illumination provided by tritium gas tubes. Some owners find the watch a great value, particularly at lower price points, while others express concern over the $800 price for the steel version. A few commenters noted the date window placement as undesirable, and one owner mentioned fixed spring bars limiting strap choices. On balance, owners and reviewers rate the Marathon Pilot's Navigator highly for its robust tritium lume and outstanding accuracy at its price point.

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER's design, with specific mentions of its beautiful ice blue sundial and compact 39mm case size, which some note wears smaller than its specifications due to a short lug-to-lug distance. Reviewers highlight its racing-inspired aesthetic and versatility, with one owner finding the 39mm solar model a sturdy and reliable everyday watch with 100m water resistance. However, some owners question the value proposition, citing the $700 price for a solar quartz model and a thickness of 13mm, while others expressed a preference for automatic movements. On balance, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER's attractive vintage-inspired design and compact wearability, though some debate its value and thickness for a solar quartz chronograph.

From video reviewers

The solar-powered chronograph movement is a key strength. The bracelet finishing is a potential area for improvement. Reviewers are split on whether the aesthetic successfully revives the spirit of the original "Pogue."

At a glance

13 of 29 specs differ
Diameter
CeraShell Pilot's Navigator41mm
Prospex SPEEDTIMER41.4mm
Power Reserve
CeraShell Pilot's Navigator
Prospex SPEEDTIMER
Water Resistance
CeraShell Pilot's Navigator60m
Prospex SPEEDTIMER100m
MSRP
CeraShell Pilot's Navigator$550
Prospex SPEEDTIMER$750

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
41mm
41.4mm
Thickness
11.5mm
13mm
Lug-to-Lug
48mm
45.9mm
Lug Width
20mm
21mm
Material
CeraShell (bio-sourced composite)
Stainless Steel
Water Resistance
60m
100m

Crystal & Dial

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

Movement

1 specs
Caliber
ETA F06
V192

Pricing

1 specs
MSRP
$550
$750
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