Side by side

Fears Arnos (Blue)vsSeiko Prospex SPEEDTIMER Mechanical

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

The bottom line

The 30.8mm Arnos (Blue) wears 8.7mm narrower than the 39.5mm Prospex SPEEDTIMER Mechanical — that's a meaningful jump on most wrists.

What people say

Owners + reviewers, side by side

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

Fears Arnos (Blue)

The Fears Arnos (Blue) is lauded for its striking blue galvanic dial with a hobnail surround and Roman numerals, housed in a vintage-inspired 33.5mm rectangular stainless steel case measuring 8.4mm in thickness. Reviewers note the convenience of its automatic Sellita SW1000-1b movement, which offers a 46-hour power reserve. On balance, reviewers praise the Fears Arnos (Blue) for its distinctive dial and slim, wearable case.

Seiko Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

Where to get them

Check prices & track

Fears Arnos (Blue)
Fears Arnos (Blue)
MSRP $4,604
Seiko Prospex SPEEDTIMER Mechanical
Seiko Prospex SPEEDTIMER Mechanical
MSRP $995
Arnos (Blue)
FearsArnos (Blue)
MSRP $4,604
Prospex SPEEDTIMER Mechanical
SeikoProspex SPEEDTIMER Mechanical
MSRP $995

At a glance

14 of 29 specs differ
Diameter
Arnos (Blue)30.8mm
Prospex SPEEDTIMER Mechanical39.5mm
Power Reserve
Arnos (Blue)40h
Prospex SPEEDTIMER Mechanical72h
Water Resistance
Arnos (Blue)30m
Prospex SPEEDTIMER Mechanical200m
MSRP
Arnos (Blue)$4,604
Prospex SPEEDTIMER Mechanical$995

Full specifications

Case

6 specs
Category
Dress
Chronograph
Diameter
30.8mm
39.5mm
Thickness
8.4mm
12mm
Lug-to-Lug
40mm
44.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
30m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW1000-1b
6R55
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$4,604
$995

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