Side by side

Serica Ref. 5303 Diving ChronometervsMarloe Watch Company Motorsport 105

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
Motorsport 105
Marloe Watch CompanyMotorsport 105
MSRP $380

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Motorsport 10541mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Motorsport 10540h
Water Resistance
Ref. 5303 Diving Chronometer300m
Motorsport 105100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Motorsport 105$380

Full specifications

Case

5 specs
Category
Diver
Sport
Diameter
39mm
41mm
Thickness
12.2mm
11.1mm
Lug-to-Lug
46.5mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Enamel Black
Lume
Super-LumiNova
Natulite

Movement

4 specs
Caliber
M100 COSC
Miyota 8N24
Power Reserve
42h
40h
Jewels
25
21
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$380

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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.

Marloe Watch Company Motorsport 105

Owners widely praise the Marloe Watch Company Motorsport 105 for its creative dial design, good contrast, and British Racing Green color, with some finding it wears smaller than its 41mm size. One owner appreciates its lack of a date window and comfortable wear on a 6.5” wrist. However, some users note Marloe's 20mm lug width can make models appear top-heavy, and a significant price increase has been observed across the brand's offerings. Overall, owners rate the Marloe Watch Company Motorsport 105 highly for its distinctive dial design and comfortable wearability.

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