Side by side

Serica Ref. 5303 Diving ChronometervsFerro Race Master Automatic

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
Race Master Automatic
FerroRace Master Automatic
MSRP $585

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Race Master Automatic45.2mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Race Master Automatic40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Race Master Automatic50m
MSRP
Ref. 5303 Diving Chronometer$1,768
Race Master Automatic$585

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
39mm
45.2mm
Thickness
12.2mm
11mm
Lug-to-Lug
46.5mm
45.2mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
Sellita SW200
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$585

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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.

Ferro Race Master Automatic

Owners widely praise the Ferro Race Master Automatic for its value, with one enthusiast highlighting the British racing green dial, strong lume, beautifully engraved case back, and comfortable 39mm brushed steel case. The transparent movement descriptions are also appreciated. However, one owner reported poor communication and suspected delays regarding a pre-production order. On balance, owners rate the Ferro Race Master Automatic highly for its dial aesthetics and comfortable wearability at its price point.

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