Side by side

Serica Ref. 5303 Diving ChronometervsCincinnati Watch Company The Cincinnatus Blue

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
The Cincinnatus Blue
Cincinnati Watch CompanyThe Cincinnatus Blue
MSRP $695
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.

Cincinnati Watch Company The Cincinnatus Blue

Owners widely praise the Cincinnati Watch Company The Cincinnatus Blue for its versatile design, pleasant manual winding action, and the value offered by its Sellita SW200-2 automatic movement, especially considering its USA assembly. The textured dial, often described as a "sandpaper dial" that shines in the sun, along with applied numerals and dark blue hands, are frequently highlighted as attractive features. Its 38mm or 39mm diameter and 47mm lug-to-lug dimensions are noted for good wearability on smaller wrists, though one owner found it necessary to remove four links for a proper fit. The lume is described as legible but dim. Overall, owners rate the Cincinnati Watch Company The Cincinnatus Blue highly for its distinctive dial and value at the price point.

At a glance

18 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
The Cincinnatus Blue38mm
Power Reserve
Ref. 5303 Diving Chronometer42h
The Cincinnatus Blue45h
Water Resistance
Ref. 5303 Diving Chronometer300m
The Cincinnatus Blue100m
MSRP
Ref. 5303 Diving Chronometer$1,768
The Cincinnatus Blue$695

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
39mm
38mm
Thickness
12.2mm
10.2mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
100m
Caseback
Solid
Screw Down Steel

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Yes
Underside
Dial Color
Enamel Black
Blue
Indices
Applied
Lume
Super-LumiNova
BGW9

Movement

5 specs
Caliber
M100 COSC
Sellita SW210-1
Type
Automatic
Manual
Power Reserve
42h
45h
Jewels
25
18
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$695
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