Side by side

Serica Ref. 5303 Diving ChronometervsSeiko Presage Classic Series

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
Presage Classic Series
SeikoPresage Classic Series
MSRP $950

At a glance

14 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Presage Classic Series40.2mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Presage Classic Series72h
Water Resistance
Ref. 5303 Diving Chronometer300m
Presage Classic Series100m
MSRP
Ref. 5303 Diving Chronometer$1,768
Presage Classic Series$950

Full specifications

Case

5 specs
Category
Diver
Dress
Diameter
39mm
40.2mm
Thickness
12.2mm
13mm
Lug-to-Lug
46.5mm
46mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Dial Color
Enamel Black
Black
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
M100 COSC
6R55
Power Reserve
42h
72h
Jewels
25
24
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$950

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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.

Seiko Presage Classic Series

The Seiko Presage Classic Series is widely praised for its sublime dial and hand finishing, with textured dials inspired by Japanese silk fabrics and aesthetically pleasing curved hands. Owners and reviewers highlight the clean dials with applied indices and the robust elegance of the watches, noting the comfortable wearability of the cases, particularly the 36mm variants, and the practical 100m water resistance. The 6R movements provide a 72-hour power reserve, a notable improvement for the price point. However, the pin and collar bracelet system is criticized by one owner as subpar for the cost, and the quoted accuracy of the 6R55 movement is -15/+25 seconds per day, though one forum user reports better performance. The exhibition caseback's finish is described as entry-industrial, and the open-heart and 24-hour subdial configurations may not appeal to all.

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