Side by side

Serica Ref. 5303 Diving ChronometervsPagani Design PD-1689

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
PD-1689
Pagani DesignPD-1689
MSRP $89

At a glance

11 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
PD-168940mm
Power Reserve
Ref. 5303 Diving Chronometer42h
PD-168940h
Water Resistance
Ref. 5303 Diving Chronometer300m
PD-1689200m
MSRP
Ref. 5303 Diving Chronometer$1,768
PD-1689$89

Full specifications

Case

4 specs
Diameter
39mm
40mm
Thickness
12.2mm
10mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
300m
200m

Crystal & Dial

2 specs
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
Type
Automatic
Quartz
Power Reserve
42h
40h
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$89

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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.

Pagani Design PD-1689

Owners widely praise the Pagani Design PD-1689 for its clean dial, minimal fluted bezel, and smooth case finishing, with sapphire crystal and 200m water resistance making it surprisingly wearable as a dress watch. The watch is considered well-executed for its price. A significant and recurring friction point is the tight lug design: standard straight springbars are difficult to fit, and owners report both leather and rubber straps remain in constant contact with the case, raising concerns about scratching; curved springbars are required. One owner also questioned the strap feel itself. Hand-to-index alignment is imprecise, and the dial lacks lume. Overall, the Pagani Design PD-1689 is valued for its clean aesthetics and finishing at the price, though the tight lug design and hand alignment are concrete trade-offs for those considering it.

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