Side by side

Serica Ref. 5303 Diving ChronometervsSugess Heritage S433 DD Date & Day

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
Heritage S433 DD Date & Day
SugessHeritage S433 DD Date & Day
MSRP $449

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Heritage S433 DD Date & Day40mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Heritage S433 DD Date & Day35h
Water Resistance
Ref. 5303 Diving Chronometer300m
Heritage S433 DD Date & Day10m
MSRP
Ref. 5303 Diving Chronometer$1,768
Heritage S433 DD Date & Day$449

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
39mm
40mm
Thickness
12.2mm
12mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
300m
10m
Caseback
Solid
Display

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
Tritium

Movement

4 specs
Caliber
M100 COSC
NH35
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
35h
Complications
COSC
GMT, Chronograph, Moonphase, Day-date, Date

Pricing

1 specs
MSRP
$1,768
$449

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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.

Sugess Heritage S433 DD Date & Day

Owners widely praise the Sugess Heritage S433 DD Date & Day for its impressive finishing and overall assembly quality, with one owner calling it rich and feeling like a high-quality mechanical watch. However, one owner found the Sugess bracelet to be a significant letdown, rendering the watch unwearable. On balance, owners rate the Sugess Heritage S433 DD Date & Day highly for its impressive finishing and perceived quality at the price point.

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