Side by side

Serica Ref. 5303 Diving ChronometervsCincinnati Watch Company Union Terminal Mechanical Watch, Gold (PVD)

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

At a glance

21 of 29 specs differ
Diameter
Ref. 5303 Diving Chronometer39mm
Union Terminal Mechanical Watch, Gold (PVD)38mm
Power Reserve
Ref. 5303 Diving Chronometer42h
Union Terminal Mechanical Watch, Gold (PVD)
Water Resistance
Ref. 5303 Diving Chronometer300m
Union Terminal Mechanical Watch, Gold (PVD)30m
MSRP
Ref. 5303 Diving Chronometer$1,768
Union Terminal Mechanical Watch, Gold (PVD)$650

Full specifications

Case

9 specs
Category
Diver
Dress
Diameter
39mm
38mm
Thickness
12.2mm
0mm
Lug-to-Lug
46.5mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Yes
Dial Color
Enamel Black
Gold
Indices
Applied
Lume
Super-LumiNova
None

Movement

6 specs
Caliber
M100 COSC
Sellita SW210
Type
Automatic
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
0h
Jewels
25
0
Complications
COSC
None

Pricing

1 specs
MSRP
$1,768
$650

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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.

Cincinnati Watch Company Union Terminal Mechanical Watch, Gold (PVD)

The Cincinnati Watch Company Union Terminal Mechanical Watch, Gold (PVD) is praised for its Art Deco design and hometown symbolism, echoing the historic Union Terminal clock with striking colors. Owners highlight its 36mm size and 10.2mm thickness as comfortable for dressier occasions, particularly on a leather strap. The Sellita SW300 movement is noted as offering excellent value under $1000, though some find the lack of a screw-down crown and date function limits its everyday versatility. Overall, owners rate the Cincinnati Watch Company Union Terminal Mechanical Watch, Gold (PVD) highly for its iconic design and sentimental value at its price point.

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