Side by side

Serica Ref. 5303 Diving ChronometervsFears Brunswick 40 (Black)

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
Brunswick 40 (Black)
FearsBrunswick 40 (Black)
MSRP $3,545

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Brunswick 40 (Black)40mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Brunswick 40 (Black)40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Brunswick 40 (Black)15m
MSRP
Ref. 5303 Diving Chronometer$1,768
Brunswick 40 (Black)$3,545

Full specifications

Case

5 specs
Category
Diver
Dress
Diameter
39mm
40mm
Thickness
12.2mm
11.9mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
15m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
La Joux-Perret G100
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$3,545

Follow this matchup

Get a note when Serica Ref. 5303 Diving Chronometer vs Fears Brunswick 40 (Black) gets more votes, a community discussion, or a price drop. No account needed.

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 Brunswick 40 (Black)

The Fears Brunswick 40 (Black) is praised for its shirt-cuff-sleek 11.06mm thin case and a bespoke five-link bracelet with a butterfly clasp, noted for its wrist-hugging comfort and muscular appearance on the cushion case. Its brushed finish effectively hides hairlines. The ETA 2824-2 automatic movement powers the watch. On balance, owners and reviewers rate the Fears Brunswick 40 (Black) highly for its British, bespoke take on the classic sports watch design and comfortable wearability.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.