Side by side

Seiko 5 Sports SKX series DENHAM Limited Edition, Seiko Boutique exclusive modelvsTimefactors Speedbird PRS-51

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

What people say

Owners + reviewers, side by side

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

Seiko 5 Sports SKX series DENHAM Limited Edition, Seiko Boutique exclusive model

Owners widely praise the 5 Sports SKX series DENHAM Limited Edition for its translucent indigo dial, spinning day/date wheels, Kanji day display, and exceptionally smooth bezel action, finding it unique without being gaudy. One owner highlights the premium NATO strap and denim-inspired design, while others note its appeal with blue jeans and a resemblance to other denim-themed watches. The 4R36 movement powers the watch, offering a 41-hour power reserve. However, one reviewer found the overall execution crude and the nylon strap a dissonant element, suggesting a different platform would have been more suitable. Some owners also note the watch is a bit large. On balance, owners and reviewers appreciate the 5 Sports SKX series DENHAM Limited Edition for its distinctive denim-inspired aesthetic and unique dial features.

Timefactors Speedbird PRS-51

Owners widely praise the Timefactors Speedbird PRS-51 for its flieger design, AR sapphire crystal, and value at £200. The 36mm case is noted to wear closer to 37mm due to the dial size, and while one owner describes the 5-link bracelet as well-built but stiff, another praises its drape and articulation. Accuracy figures vary among owners, with one reporting +7 seconds per day and another around +10 seconds per day, though one owner states theirs keeps impeccable time. The Miyota 9015 movement is noted by one owner to exhibit noticeable rotor wobble. Overall, owners rate the Timefactors Speedbird PRS-51 highly for its pilot watch aesthetics and value.

At a glance

13 of 29 specs differ
Diameter
5 Sports SKX series DENHAM Limited Edition, Seiko Boutique exclusive model42.5mm
Speedbird PRS-5136mm
Power Reserve
5 Sports SKX series DENHAM Limited Edition, Seiko Boutique exclusive model41h
Speedbird PRS-51
Water Resistance
5 Sports SKX series DENHAM Limited Edition, Seiko Boutique exclusive model100m
Speedbird PRS-51100m
MSRP
5 Sports SKX series DENHAM Limited Edition, Seiko Boutique exclusive model$430
Speedbird PRS-51$436

Full specifications

Case

5 specs
Category
Diver
Diameter
42.5mm
36mm
Thickness
13.4mm
11.4mm
Lug-to-Lug
46mm
42mm
Lug Width
22mm
18mm

Crystal & Dial

4 specs
Crystal
Hardlex
Sapphire
Crystal Shape
Curved
Dial Color
Black
Lume
LumiBrite on hands and index(es)
SuperLuminova X1-C3

Movement

3 specs
Caliber
Seiko 4R36
Miyota 9015
Power Reserve
41h
Jewels
24
0

Pricing

1 specs
MSRP
$430
$436
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