Side by side

Serica Ref. 5303 Diving ChronometervsTudor Pelagos 39

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
Pelagos 39
TudorPelagos 39
MSRP $5,625

At a glance

15 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Pelagos 3940mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Pelagos 3970h
Water Resistance
Ref. 5303 Diving Chronometer300m
Pelagos 39200m
MSRP
Ref. 5303 Diving Chronometer$1,768
Pelagos 39$5,625

Full specifications

Case

8 specs
Diameter
39mm
40mm
Thickness
12.2mm
11.8mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
21mm
Material
Stainless Steel
Grade 2 Titanium
Finish
Brushed and polished
Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
$578
Lume
Super-LumiNova
luminescent ceramic composite hour markers

Movement

3 specs
Caliber
M100 COSC
MT5400
Power Reserve
42h
70h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$5,625

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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 Pelagos 39

The Tudor Pelagos 39 is widely praised for its comfortable 39mm titanium case, making it a versatile and refined everyday dive watch with a sunray dial and bezel. Owners and reviewers consistently highlight its wearability, with specific mention of its 11.8mm thickness and 107-gram weight. Some owners note the titanium case scuffs easily but that the matte finish hides scratches well and they can be buffed out. Criticisms include a 21mm lug width deemed unnecessary by one owner and some find the T-fit clasp edges sharp, though this is disputed by another. The lume is considered acceptable but not class-leading. Overall, owners and reviewers rate the Tudor Pelagos 39 highly for its comfortable dimensions and refined everyday wearability.

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