Side by side

Serica Ref. 5303 Diving ChronometervsBoschett Timepieces Cave Dweller

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
Cave Dweller
Boschett TimepiecesCave Dweller
MSRP $750

At a glance

11 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Cave Dweller44mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Cave Dweller40h
Water Resistance
Ref. 5303 Diving Chronometer300m
Cave Dweller1,000m
MSRP
Ref. 5303 Diving Chronometer$1,768
Cave Dweller$750

Full specifications

Case

5 specs
Diameter
39mm
44mm
Thickness
12.2mm
16.5mm
Lug-to-Lug
46.5mm
46mm
Lug Width
20mm
22mm
Water Resistance
300m
1000m

Crystal & Dial

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

Movement

3 specs
Caliber
M100 COSC
Sellita SW-200
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$750

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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.

Boschett Timepieces Cave Dweller

Owners praise the Boschett Cave Dweller's rugged look, versatility, and reliable performance, with one owner noting its appeal due to limited production. A reviewer flags non-drilled lugs as frustrating and criticizes the bezel grip, while also noting average blue lume performance and a small date window. Overall, owners value the Boschett Cave Dweller for its robust design and dependable functionality, with specific features like the practical clasp being a highlight for some.

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