Side by side

Serica Ref. 5303 Diving ChronometervsSternglas Marus 2.0

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
Marus 2.0
SternglasMarus 2.0
MSRP $593

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Marus 2.041mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Marus 2.041h
Water Resistance
Ref. 5303 Diving Chronometer300m
Marus 2.0200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Marus 2.0$593

Full specifications

Case

4 specs
Diameter
39mm
41mm
Thickness
12.2mm
14mm
Lug-to-Lug
46.5mm
49mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Lume
Super-LumiNova
Luminova

Movement

4 specs
Caliber
M100 COSC
Seiko TMI NH35
Power Reserve
42h
41h
Jewels
25
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$593

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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.

Sternglas Marus 2.0

Owners widely praise the Sternglas Marus 2.0 for its well-built, heavy case and excellent bezel action, which is considered superior to some competitors. Reviewers note the refined case and luminous dial markers, while the green dial stands out from other divers. The Seiko NH35A movement offers accuracy ranging from -20/+40 seconds per day. One reviewer desired a slightly larger screw-down crown. Overall, owners and reviewers rate the Sternglas Marus 2.0 highly for its robust build and standout dial at its price point.

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