Side by side

Serica Ref. 5330 Diving Chronometer DatevsBreitling Top Time B01

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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. 5330 Diving Chronometer Date

Serica is praised for its comfortable 39mm case, distinctive twin-scale bezel, and well-executed mesh bracelet. Owners widely report a dial balance and minimal text inspired by 60s dive watches. However, multiple owners flag significant quality control issues, including dials moving when the crown is pulled, minute hands jumping, and misaligned or difficult-to-turn bezels. The 5330 Dive Chronometer variant, which includes a date window, retails for €1,690 and uses a COSC-certified Soprod M100 automatic movement. Overall, owners rate Serica highly for its comfortable 39mm size and dive watch aesthetics, though quality control concerns are a notable caveat.

Breitling Top Time B01

The Breitling Top Time B01 is widely praised for its handsome design and sharp finishing, featuring the in-house B01 movement. Owners find the 41mm case wears smaller than dimensions suggest, and specific variants like the Triumph and Deus are highlighted for their attractive dials and unique details. The Breitling B01 movement is a consistent point of appreciation, with owners noting its smooth operation and 70-hour power reserve. Some owners report the watch is a favorite, even surpassing other timepieces in their collection, and find it sexier than alternatives. However, some reviewers suggest the abundant polishing on certain cases could benefit from more brushing. The lug-to-lug length on the 41mm case can be a concern for smaller wrists, prompting advice to try it on in person. One owner noted a price of $5,300 USD for the Triumph model, while another questioned a $2,500 price difference over ETA-equipped models, seeing no discernible difference between the movements.

From video reviewers

The in-house B01 chronograph movement with its 70-hour power reserve stands out as the defining strength, delivering substantial functionality and reliability across multiple variants. The compact proportions—ranging from 38mm to 41mm cases with lug-to-lug measurements between 44mm and 50mm—ensure comfortable wearability across different wrist sizes. Reviewer assessments diverged sharply on value, with one calling the £5,950 price point excellent value for the specifications, while others provided no pricing commentary.

At a glance

16 of 29 specs differ
Diameter
Ref. 5330 Diving Chronometer Date39mm
Top Time B0141mm
Power Reserve
Ref. 5330 Diving Chronometer Date42h
Top Time B0170h
Water Resistance
Ref. 5330 Diving Chronometer Date300m
Top Time B01100m
MSRP
Ref. 5330 Diving Chronometer Date$2,005
Top Time B01$750

Full specifications

Case

7 specs
Category
Diver
Mechanical
Diameter
39mm
41mm
Thickness
12.2mm
13.3mm
Lug-to-Lug
46.5mm
Lug Width
20mm
0mm
Finish
18k red gold
Water Resistance
300m
100m

Crystal & Dial

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

Movement

5 specs
Caliber
Soprod M100
Breitling B01
Power Reserve
42h
70h
Hacking
No
Yes
Hand-winding
No
Yes
Complications
COSC, Date
None

Pricing

1 specs
MSRP
$2,005
$750
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