Side by side

Fortis Stratoliner S-41vsSeiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

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

At a glance

14 of 29 specs differ
Diameter
Stratoliner S-4141mm
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Power Reserve
Stratoliner S-4160h
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch50h
Water Resistance
Stratoliner S-41200m
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
MSRP
Stratoliner S-41$5,450
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$2,900

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
41mm
42.6mm
Thickness
14mm
13.4mm
Lug-to-Lug
49.3mm
Lug Width
21mm
20mm
Water Resistance
200m
300m

Crystal & Dial

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

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
8L35
Power Reserve
60h
50h
Jewels
36
26

Pricing

1 specs
MSRP
$5,450
$2,900

Follow this matchup

Get a note when Fortis Stratoliner S-41 vs Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Fortis Stratoliner S-41

Owners widely praise the Fortis Stratoliner S-41 for its purpose-built design and outstanding details, particularly its space blue lume and bright orange date on the dial. Reviewers note the WERK 17 movement offers a 60-hour power reserve. However, the Fortis Stratoliner S-41's 41mm case thickness and lug-to-lug distance lead some to perceive it as wearing large, and the dial's small text and flat design are flagged as potential drawbacks. Overall, owners and reviewers highlight the Fortis Stratoliner S-41's unique design and innovative movement as its primary strengths.

Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

The Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch is praised for its premium finishing, often described as Zaratsu-like, and robust build quality, with owners finding its 42mm case and 4 o'clock crown appealing for wearability. Some reviewers note its secondary GMT function and quieter bezel clicks may not suit all preferences, while one owner reported bezel misalignment issues. The watch is powered by the Caliber 8L45 automatic movement, offering a 72-hour power reserve and an accuracy rating of -5/+10 seconds per day, though some owners question its value proposition at its price point. On balance, owners and reviewers rate the Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch highly for its exceptional finishing and refined tool-like aesthetic.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.