Side by side

Serica Ref. 5303 Diving ChronometervsRaven Trekker

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
Trekker
RavenTrekker
MSRP $690
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.

Raven Trekker

Owners widely praise the Raven Trekker for its classic yet unique design, excellent bracelet, killer BGW9 lume, and overall value, with many finding the 39mm case size perfect and appreciating its blend of explorer and dive watch aesthetics. Reviewers and owners consistently flag the tight, play-free bezel action and the crisp, legible dial. Some owners note the Miyota 9015 movement's rotor can exhibit wobble, the crown threads can feel grindy, and the bracelet's solid end links can be difficult to reinsert, with one owner finding the 2022 bracelet too simple. Overall, owners rate the Raven Trekker highly for its exceptional value and tool-watch build at the price point.

At a glance

11 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Trekker39mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Trekker
Water Resistance
Ref. 5303 Diving Chronometer300m
Trekker200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Trekker$690

Full specifications

Case

4 specs
Category
Diver
Thickness
12.2mm
12.5mm
Lug-to-Lug
46.5mm
48mm
Water Resistance
300m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
Miyota 9015
Power Reserve
42h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$690
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