Side by side

Maen Manhattan 40vsTimefactors 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.

Maen Manhattan 40

Owners appreciate the Maen Manhattan 40's thin case and unique dial, with some finding its proportions too large for smaller wrists. One owner noted a snagging crown and difficult winding action. Accuracy figures vary, with one owner reporting +18s/d to +24s/d on the 37mm version, while another owner of the 40mm model did not specify accuracy. On balance, owners and reviewers find the Maen Manhattan 40 to be a good value, with its thinness and dial finishing being key strengths.

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

11 of 29 specs differ
Diameter
Manhattan 4040mm
Speedbird PRS-5136mm
Power Reserve
Manhattan 40
Speedbird PRS-51
Water Resistance
Manhattan 40100m
Speedbird PRS-51100m
MSRP
Manhattan 40$799
Speedbird PRS-51$436

Full specifications

Case

6 specs
Category
Dress
Diameter
40mm
36mm
Thickness
11.4mm
Lug-to-Lug
42mm
Lug Width
18mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

2 specs
Dial Color
M3.1.1
Black
Lume
None
SuperLuminova X1-C3

Movement

2 specs
Caliber
Miyota 9015
Power Reserve
0h

Pricing

1 specs
MSRP
$799
$436
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