Side by side

Brew MetricvsTimefactors Speedbird PRS-51

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

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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.

Brew Metric

The Brew Metric is widely praised for its 1970s-inspired retro design, with reviewers and owners specifically highlighting its unique dial aesthetics, compact 36mm case size, and comfortable wearability on various wrist sizes. The watch's finishing is frequently lauded, with particular appreciation for its contrasting brushed and polished surfaces and well-executed gold treatment. Owners also note the pleasing feel of the pushers and crown, the accuracy of the VK68 meca-quartz movement, and the sapphire crystal. However, some owners report quality control issues, including dial defects and missing lume, and a few find the bezel dents easily. The bracelet is a point of contention, with some finding it uncomfortable and prone to pulling arm hairs, while others praise its dramatic taper. The watch's 50-meter water resistance is considered cautious by one reviewer, and the lug width of 19.85mm limits strap options.

From video reviewers

The watch's unique design and compact dimensions are praised. The bracelet is noted as stiff and lacking flexibility. Reviewers were divided on whether the Seiko NH35A movement or the meca-quartz movement offered better value at the price point.

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
Metric36mm
Speedbird PRS-5136mm
Power Reserve
Metric
Speedbird PRS-51
Water Resistance
Metric50m
Speedbird PRS-51100m
MSRP
Metric$475
Speedbird PRS-51$436

Full specifications

Case

7 specs
Category
Chronograph
Thickness
10.75mm
11.4mm
Lug-to-Lug
41.5mm
42mm
Lug Width
19.85mm
18mm
Material
Stainless Steel 316L
Stainless Steel
Water Resistance
50m
100m
Caseback
Stainless Steel 316L

Crystal & Dial

1 specs
Lume
None
SuperLuminova X1-C3

Movement

4 specs
Caliber
Seiko VK68
Miyota 9015
Type
Quartz
Automatic
Power Reserve
0h
Complications
Chronograph
None

Pricing

1 specs
MSRP
$475
$436
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