Side by side

Seiko Prospex SeavsCincinnati Watch Company Union Terminal Mechanical

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Prospex Sea
SeikoProspex Sea
MSRP $1,500
Union Terminal Mechanical
Cincinnati Watch CompanyUnion Terminal Mechanical
MSRP $650

At a glance

20 of 29 specs differ
Diameter
Prospex Sea43.5mm
Union Terminal Mechanical38mm
Power Reserve
Prospex Sea70h
Union Terminal Mechanical
Water Resistance
Prospex Sea200m
Union Terminal Mechanical30m
MSRP
Prospex Sea$1,500
Union Terminal Mechanical$650

Full specifications

Case

9 specs
Category
Diver
Dress
Diameter
43.5mm
38mm
Thickness
13.3mm
0mm
Lug-to-Lug
51mm
0mm
Lug Width
22mm
0mm
Material
Titanium
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
200m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Multiple
Indices
Applied
Lume
LumiBrite on hands and index(es)
BGW9

Movement

5 specs
Caliber
6R35
Sellita SW210
Type
Automatic
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
70h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$1,500
$650

Follow this matchup

Get a note when Seiko Prospex Sea vs Cincinnati Watch Company Union Terminal Mechanical gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

Cincinnati Watch Company Union Terminal Mechanical

Owners praise the Cincinnati Watch Company Union Terminal Mechanical for its striking design and historical significance, particularly for Cincinnati natives. One owner highlights its suitability as a dress watch, finding it wears well on a leather strap. The watch is noted for its colors and design inspired by the Union Terminal clock, with a portion of sales supporting the landmark. At just over $350, it is considered a good value despite not featuring a high-end movement, strap, or crystal. Overall, owners rate the Cincinnati Watch Company Union Terminal Mechanical highly for its unique design and local historical connection at an accessible price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.