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 $625
Union Terminal Mechanical
Cincinnati Watch CompanyUnion Terminal Mechanical
MSRP $650

At a glance

20 of 29 specs differ
Diameter
Prospex Sea43.8mm
Union Terminal Mechanical38mm
Power Reserve
Prospex Sea41h
Union Terminal Mechanical
Water Resistance
Prospex Sea200m
Union Terminal Mechanical30m
MSRP
Prospex Sea$625
Union Terminal Mechanical$650

Full specifications

Case

9 specs
Category
Diver
Dress
Diameter
43.8mm
38mm
Thickness
12.8mm
0mm
Lug-to-Lug
48.7mm
0mm
Lug Width
22mm
0mm
Material
Stainless Steel
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, index(es) and bezel
BGW9

Movement

5 specs
Caliber
4R35
Sellita SW210
Type
Automatic
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
41h
0h
Jewels
23
0

Pricing

1 specs
MSRP
$625
$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.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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.

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