Side by side

Serica Ref. 5303 Diving ChronometervsBaltic Aquascaphe Titanium

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
Aquascaphe Titanium
BalticAquascaphe Titanium
MSRP $788

At a glance

9 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Aquascaphe Titanium41mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Aquascaphe Titanium42h
Water Resistance
Ref. 5303 Diving Chronometer300m
Aquascaphe Titanium300m
MSRP
Ref. 5303 Diving Chronometer$1,768
Aquascaphe Titanium$788

Full specifications

Case

4 specs
Diameter
39mm
41mm
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
47mm
Material
Stainless Steel
Titanium

Crystal & Dial

2 specs
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
SuperLuminova

Movement

2 specs
Caliber
M100 COSC
Miyota 9039
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$788

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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 Aquascaphe Titanium

The Baltic Aquascaphe Titanium is widely praised for its lightweight, brushed grade 5 titanium case, vintage-inspired high-domed sapphire crystal, and visually appealing ceramic bezel. Owners and reviewers highlight its modern, purpose-driven design with squared-off crown guards and a no-date display, noting excellent finishing for its price point. The watch offers 300m water resistance and a fully lumed bezel. Some reviewers find the 41mm bezel less vintage than the original and note potential glare issues, while others welcome the updated design and improved specifications. One owner reported a bezel detachment issue, leading to a repair quote that sparked debate within the community regarding value and quality for the price. The movement is a Miyota 9039 with a 42-hour power reserve. Overall, owners and reviewers rate the Baltic Aquascaphe Titanium highly for its contemporary dive watch design and excellent finishing at its price point.

From video reviewers

The watch's comfortable fit for smaller wrists is a notable strength, with a 41mm case size and 47mm lug-to-lug fit. A potential weakness is the ceramic bezel's potential for wear and tear. Reviewers disagree on the watch's lume, with one reviewer mentioning it's not the brightest and the other not mentioning it at all.

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