Side by side

Serica Ref. 5303 Diving ChronometervsSpinnaker Tesei Bronze Swiss

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
Tesei Bronze Swiss
SpinnakerTesei Bronze Swiss
MSRP $850

At a glance

12 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Tesei Bronze Swiss43mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Tesei Bronze Swiss40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Tesei Bronze Swiss300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Tesei Bronze Swiss$850

Full specifications

Case

5 specs
Diameter
39mm
43mm
Thickness
12.2mm
16mm
Lug-to-Lug
46.5mm
52mm
Lug Width
20mm
22mm
Material
Stainless Steel
Bronze

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
Sellita SW200-1
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$850

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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.

Spinnaker Tesei Bronze Swiss

Owners praise the Spinnaker Tesei Bronze Swiss for its incredible macro-level detail and sharp design, noting its bronze case, ceramic bezel, and wave dial. The inclusion of a Sellita SW200 Swiss movement is highlighted. One owner expressed a desire for a smaller 39-40mm variant, stating it would be their ultimate bronze diver if such a size were offered. On balance, owners rate the Spinnaker Tesei Bronze Swiss highly for its detailed finishing and bronze diver aesthetic.

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