Side by side

Cincinnati Watch Company The Cincinnatus Field Black Manual WindvsSeiko Prospex Sea 1968 Heritage Diver's GMT

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

What people say

Owners + reviewers, side by side

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

Cincinnati Watch Company The Cincinnatus Field Black Manual Wind

Owners praise the Cincinnati Watch Company Cincinnatus Field for its exceptional value, citing the Sellita SW210-1 manual-wind movement, gilt numerals, textured dial, and sapphire crystal, all assembled in the USA for under $400. Exceptional customer service is noted, with the maker accommodating left-handed dial flips. The watch is well-made and runs at approximately -2 seconds per day. Overall, owners rate the Cincinnati Watch Company highly for its impressive specification set and value proposition.

Seiko Prospex Sea 1968 Heritage Diver's GMT

The Seiko Prospex Sea 1968 Heritage Diver's GMT is widely praised for its build quality, finishing, and comfortable wearability, offering good value for its price point. Owners and reviewers highlight the attractive silver/white sunray dial, blue ceramic bezel, and the premium feel of the improved bracelet clasp with excellent micro-adjustment. The Caliber 6R54 movement provides a 72-hour power reserve, and real-world accuracy often exceeds its stated range of +25 to -15 seconds per day, with some owners reporting figures around +3 to +5 seconds per day. However, the caller-style GMT functionality is a point of contention for some, who find the GMT scale difficult to read and prefer a flyer GMT at this price. Some also find the crown position at 4 o'clock undesirable, and a few note a lack of dial contrast or illegibility of the inner bezel.

At a glance

17 of 29 specs differ
Diameter
The Cincinnatus Field Black Manual Wind38mm
Prospex Sea 1968 Heritage Diver's GMT42mm
Power Reserve
The Cincinnatus Field Black Manual Wind45h
Prospex Sea 1968 Heritage Diver's GMT72h
Water Resistance
The Cincinnatus Field Black Manual Wind100m
Prospex Sea 1968 Heritage Diver's GMT200m
MSRP
The Cincinnatus Field Black Manual Wind$695
Prospex Sea 1968 Heritage Diver's GMT$1,500

Full specifications

Case

7 specs
Category
Field
Diver
Diameter
38mm
42mm
Thickness
10.2mm
12.9mm
Lug-to-Lug
46.5mm
48.6mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m
Caseback
Screw Down Steel

Crystal & Dial

4 specs
Crystal Shape
Domed
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Black
Lume
X1 C3
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
Sellita SW210-1
6R54
Type
Manual
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
45h
72h
Jewels
18
24

Pricing

1 specs
MSRP
$695
$1,500
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