Side by side

Serica Ref. 5303 Diving ChronometervsBaltic Heures du Monde - Worldtimer

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
Heures du Monde - Worldtimer
BalticHeures du Monde - Worldtimer
MSRP $1,300

At a glance

10 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Heures du Monde - Worldtimer37mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Heures du Monde - Worldtimer42h
Water Resistance
Ref. 5303 Diving Chronometer300m
Heures du Monde - Worldtimer100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Heures du Monde - Worldtimer$1,300

Full specifications

Case

5 specs
Category
Diver
World Timer
Diameter
39mm
37mm
Thickness
12.2mm
11.3mm
Lug-to-Lug
46.5mm
45mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Enamel Black
Worldtimer - Labradorite
Lume
Super-LumiNova
BGW9

Movement

2 specs
Caliber
M100 COSC
Soprod C125 GMT
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$1,300

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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.

Baltic Heures du Monde - Worldtimer

The Baltic Heures du Monde - Worldtimer is praised for its vintage-inspired design and stone dials, offering a worldtimer complication at an accessible price point. Owners note impressive legibility for a worldtimer, though some find the lack of a seconds hand and the hands themselves ill-suited to the watch's elegance. The use of a diver's bezel is also criticized as uninspired. The watch features a 37mm stainless steel case, a ceramic world time bezel, and is powered by a Soprod C125 GMT movement with a 42-hour power reserve. On balance, owners and reviewers appreciate the Baltic Heures du Monde - Worldtimer's design and value, despite some reservations about specific design choices and its price point.

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