Side by side

Serica Ref. 5303 Diving ChronometervsFears Arnos (Blue)

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

Ref. 5303 Diving Chronometer
SericaRef. 5303 Diving Chronometer
MSRP $1,768
Arnos (Blue)
FearsArnos (Blue)
MSRP $4,604

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Arnos (Blue)30.8mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Arnos (Blue)40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Arnos (Blue)30m
MSRP
Ref. 5303 Diving Chronometer$1,768
Arnos (Blue)$4,604

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
39mm
30.8mm
Thickness
12.2mm
8.4mm
Lug-to-Lug
46.5mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
30m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Blue
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Sellita SW1000-1b
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$4,604

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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.

Serica Ref. 5303 Diving Chronometer

Owners widely praise the Serica Ref. 5303 Diving Chronometer for its excellent wearability, definitive style, and smooth, confident bezel action. The dual scale on the bezel is noted as surprisingly useful, and the crown action, winding, and hacking are reported to work perfectly. One owner describes the Serica 5303-3 as gorgeous and unique, though another notes the crown can appear comically large. On balance, owners rate the Serica Ref. 5303 Diving Chronometer highly for its blend of unique design and robust functionality.

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.

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