Side by side

Serica Ref. 5303 Diving ChronometervsWolbrook Pan4Timer 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
Pan4Timer Automatic
WolbrookPan4Timer Automatic
MSRP $510

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Pan4Timer Automatic40mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Pan4Timer Automatic40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Pan4Timer Automatic150m
MSRP
Ref. 5303 Diving Chronometer$1,768
Pan4Timer Automatic$510

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
39mm
40mm
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
150m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Enamel Black
Camel Rally Leather Strap
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Miyota 8315
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$510

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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.

Wolbrook Pan4Timer Automatic

Owners praise the Wolbrook Pan4Timer Automatic for its innovative four-timezone complication and value around $500 with a Miyota movement assembled in France. However, some find the design busy, sacrificing legibility for its unique function, and note unusual or politically sensitive city selections on the timezone disks. On balance, owners value the Wolbrook Pan4Timer Automatic for its unique complication and assembly location, though legibility and city choices are points of contention.

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