Side by side

Seiko Prospex SeavsTimefactors Speedbird III PRS-22

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

Prospex Sea
SeikoProspex Sea
MSRP $1,100
Speedbird III PRS-22
TimefactorsSpeedbird III PRS-22
MSRP $651
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 Sea

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

Timefactors Speedbird III PRS-22

Owners widely praise the Timefactors Speedbird III PRS-22 for its exceptional finishing, casework, and value, with multiple owners calling it the finest watch under $1000 and noting its quality rivals that of IWC. Specific highlights include applied indices, a screw-down crown, and a comfortable bracelet. Some owners report the lume fades quickly, and the short lugs can make strap changes difficult. The watch features a Sellita SW200-1 automatic movement and a 39mm case. Overall, owners rate the Timefactors Speedbird III PRS-22 highly for its impressive build quality and design at its price point.

At a glance

11 of 29 specs differ
Diameter
Prospex Sea41.3mm
Speedbird III PRS-2239mm
Power Reserve
Prospex Sea72h
Speedbird III PRS-22
Water Resistance
Prospex Sea300m
Speedbird III PRS-22100m
MSRP
Prospex Sea$1,100
Speedbird III PRS-22$651

Full specifications

Case

5 specs
Category
Diver
Diameter
41.3mm
39mm
Thickness
12.5mm
11.7mm
Lug-to-Lug
48.2mm
46mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R55
Sellita SW200-1
Power Reserve
72h
Jewels
24
25

Pricing

1 specs
MSRP
$1,100
$651
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