Side by side

Bremont Williams RacingvsSeiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition

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

Williams Racing
BremontWilliams Racing
MSRP $7,000

At a glance

14 of 29 specs differ
Diameter
Williams Racing43mm
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition39.5mm
Power Reserve
Williams Racing40h
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition72h
Water Resistance
Williams Racing
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition200m
MSRP
Williams Racing$7,000
Prospex SPEEDTIMER Mechanical Datsun 240Z Limited Edition$1,150

Full specifications

Case

6 specs
Diameter
43mm
39.5mm
Thickness
15.8mm
12mm
Lug-to-Lug
44.5mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

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

Movement

3 specs
Caliber
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$7,000
$1,150

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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.

Bremont Williams Racing

The Bremont Williams Racing features a panda dial with blue accents and a tachymeter bezel, housed in a 43mm TripTick case. It is powered by a chronometer-rated BE-53AE automatic movement with a 42-hour power reserve and a custom rotor. While the 15.8mm height is considered reasonable for a chronograph, the 43mm case size may require trying it on for those preferring smaller watches. Overall, reviewers highlight the motorsport-inspired design and robust build of the Bremont Williams Racing.

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.

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