Side by side

Serica Ref. 5303 Diving ChronometervsTudor Black Bay 58 925

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
Black Bay 58 925
TudorBlack Bay 58 925
MSRP $5,600

At a glance

18 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Black Bay 58 92539mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Black Bay 58 92570h
Water Resistance
Ref. 5303 Diving Chronometer300m
Black Bay 58 925200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Black Bay 58 925$5,600

Full specifications

Case

5 specs
Thickness
12.2mm
12.7mm
Lug-to-Lug
46.5mm
46mm
Finish
Brushed and polished
Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Enamel Black
Taupe
Indices
Applied
Lume
Super-LumiNova
None

Movement

7 specs
Caliber
M100 COSC
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$5,600

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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.

Tudor Black Bay 58 925

The Tudor Black Bay 58 925 is praised for its unique taupe dial and bezel, and COSC-certified movement. Owners widely report the silver case scratches and dings more easily than steel, and some experience tarnishing despite anti-tarnishing claims, though it can be cleaned with an eraser or silver cloth. While some find the leather strap uncomfortable due to weight imbalance, others consider it suitable. The dial can appear washed out in certain lighting, and one owner notes the long springbar can scratch the case if it pops out. On balance, owners and reviewers appreciate the Tudor Black Bay 58 925 for its unique silver case and taupe dial, despite concerns about scratching and tarnishing.

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