Side by side

Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited EditionvsFormex Stratos UTC

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

Stratos UTC
FormexStratos UTC
MSRP $4,663

At a glance

13 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm
Stratos UTC41mm
Power Reserve
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h
Stratos UTC42h
Water Resistance
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m
Stratos UTC100m
MSRP
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150
Stratos UTC$4,663

Full specifications

Case

5 specs
Category
Chronograph
GMT
Diameter
39.5mm
41mm
Thickness
12mm
11.8mm
Lug-to-Lug
44.5mm
47mm
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Blue
Lume
LumiBrite on hands and index(es)
Super-LumiNova

Movement

3 specs
Caliber
6R55
ETA 2892
Power Reserve
72h
42h
Jewels
24
25

Pricing

1 specs
MSRP
$1,150
$4,663

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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 Datsun 240Z Limited Edition

The Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition is praised for its vintage racing concept, applied markers, and dial that shifts from cream to silver with orange accents. Owners appreciate the Datsun logo, dual crowns, and internal countdown bezel, with some noting Seiko's finishing is top-notch. However, some find the dial text cluttered, particularly "automatic 3 days," and consider the price point too high. The watch features a 42mm black-coated stainless steel case, an external tachymeter bezel, and Seiko's 8R48 automatic chronograph movement with a 45-hour power reserve. On balance, owners rate the Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition well for its unique vintage concept and quality finishing, though price remains a point of contention for some.

Formex Stratos UTC

Owners and reviewers widely praise the Formex Stratos UTC for its user-friendly flyer GMT complication, which utilizes pushers for time-zone adjustments, and its slim 11.8mm case. The watch is noted for its intricate, hand-finished case with a multi-layer construction and excellent finishing, along with a unique two-level case design. The Dubois-Depraz module on an ETA 2892 movement is a highlight, with accuracy figures ranging from +/- 5 to +/- 7 seconds per day. However, some find the dial busy with multiple typefaces and the overall design too complex or "plug ugly," with the price near €4000 considered high by some for a newer brand. Overall, owners and reviewers rate the Formex Stratos UTC highly for its innovative GMT functionality and excellent case finishing at its price point.

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