Seiko Prospex SPEEDTIMER Mechanical Datsun 240Z Limited EditionvsTimefactors Royal Navy Diver PRS-82
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures
Owners + reviewers, side by side
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
Owners widely praise the Timefactors Royal Navy Diver PRS-82 for its exceptional case finishing at its price point and substantial bezel clicks. The 40mm sizing, sapphire crystal, and dateless design are frequently highlighted, with many appreciating its comfortable wearability on smaller wrists due to its short lug-to-lug distance and asymmetric case. Some owners note the lume is decent and legible overnight but fades faster than some other brands, and one owner found the hands' lume pip color clashed with the dial lume. The movement's seconds hand exhibits a characteristic "stutter" as observed by one owner. Overall, owners rate the Timefactors Royal Navy Diver PRS-82 highly for its authentic reissue appeal and excellent value.
At a glance
13 of 29 specs differFull specifications
Case
5 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsMore watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.













