Side by side

Seiko Prospex SPEEDTIMER Mechanical ChronographvsLongines LONGINES SPIRIT FLYBACK TITANIUM

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

LONGINES SPIRIT FLYBACK TITANIUM
LonginesLONGINES SPIRIT FLYBACK TITANIUM
MSRP $5,900

At a glance

11 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical Chronograph42mm
LONGINES SPIRIT FLYBACK TITANIUM42mm
Power Reserve
Prospex SPEEDTIMER Mechanical Chronograph45h
LONGINES SPIRIT FLYBACK TITANIUM40h
Water Resistance
Prospex SPEEDTIMER Mechanical Chronograph100m
LONGINES SPIRIT FLYBACK TITANIUM100m
MSRP
Prospex SPEEDTIMER Mechanical Chronograph$2,500
LONGINES SPIRIT FLYBACK TITANIUM$5,900

Full specifications

Case

3 specs
Thickness
14.6mm
17mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium

Crystal & Dial

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

Movement

3 specs
Caliber
8R48
L791.4
Power Reserve
45h
40h
Jewels
34
25

Pricing

1 specs
MSRP
$2,500
$5,900

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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.

Seiko Prospex SPEEDTIMER Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design with a clean, balanced dial and an external tachymeter bezel. Reviewers highlight the upgraded case and bracelet, noting improved comfort and good value for a well-designed chronograph with an in-house movement. The caliber 8R48 movement features a vertical clutch and column wheel with MEMS technology for durability and precision. Points to consider include the 4:30 date window and a 14.6mm thickness, while the 45-hour power reserve is noted as an area for potential improvement. On balance, reviewers find the Seiko Prospex SPEEDTIMER Mechanical Chronograph to be a solid offering with good value, particularly for its design and in-house movement.

LONGINES SPIRIT FLYBACK TITANIUM

The LONGINES SPIRIT FLYBACK TITANIUM is widely praised for its luxurious finishing on titanium, attractive anthracite dial with gold and red accents, and precise COSC-certified L791.4 movement. Owners and reviewers consistently highlight its value as a flyback chronograph with a 68-hour power reserve and 100-meter water resistance. However, its 17mm case thickness is a significant concern for wearability, particularly under sleeves, with some suggesting alternative strap options. On balance, owners and reviewers rate the LONGINES SPIRIT FLYBACK TITANIUM highly for its finishing and value, despite the noted thickness.

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