Side by side

Serica Ref. 5303 Diving ChronometervsTSAO Baltimore Balt-Pilot Worldtimer Meteorite

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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.

TSAO Baltimore Balt-Pilot Worldtimer Meteorite

TSAO Baltimore Balt-Pilot Worldtimer Meteorite owners praise its comfortable titanium construction and interesting case lines, with notable rotor finishing and a meteorite dial that contributes to its perceived value. Some owners find the watch wears extremely well and is a favorite piece. Legibility can be a concern due to the 24-hour ring and branding against the meteorite dial. One owner noted that sizing the pin-and-collar bracelet was a difficult learning experience. Overall, owners rate the TSAO Baltimore Balt-Pilot Worldtimer Meteorite highly for its value proposition, particularly for the meteorite dial version, and its comfortable wearability.

At a glance

13 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Balt-Pilot Worldtimer Meteorite40mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Balt-Pilot Worldtimer Meteorite40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Balt-Pilot Worldtimer Meteorite100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Balt-Pilot Worldtimer Meteorite$850

Full specifications

Case

6 specs
Category
Diver
Diameter
39mm
40mm
Thickness
12.2mm
15mm
Lug-to-Lug
46.5mm
48mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
M100 COSC
Seiko NH34
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$850
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