Side by side

Sheffield 1AvsSeiko Prospex Sea Save the Ocean Special Edition

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

1A
Sheffield1A
MSRP $223
What people say

Owners + reviewers, side by side

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

Sheffield 1A

Owners widely praise the Sheffield 1A for its superb quality, sturdiness, and value, with many finding its blue dial appealing and its construction more substantial than comparable models. One owner noted expensive shipping fees as a drawback, and another suggested the bezel action could be crisper. Overall, owners consider the Sheffield 1A a no-brainer for its affordability and quality.

Seiko Prospex Sea Save the Ocean Special Edition

Owners widely praise the Seiko Prospex Sea Save the Ocean Special Edition for its exceptional and captivating dial designs, often described as a highlight that evokes ocean surfaces with unique textures and color gradients. The watch is frequently noted for its excellent value, with some reviewers comparing its aesthetics to much higher-priced brands. Owners report satisfactory lume and accurate timekeeping, with figures ranging from +5 seconds per day to more precise results. However, some owners and reviewers point to the bracelet clasp as a point of criticism, describing it as underwhelming or flimsy, and some find the watch to be top-heavy. There are also mentions of imperfect day/date wheel alignment and occasional bezel alignment issues on some models within the line. The Seiko Prospex Sea Save the Ocean Special Edition is available in various case sizes, with some owners questioning if certain dimensions are too bulky for daily wear.

At a glance

10 of 29 specs differ
Diameter
1A40mm
Prospex Sea Save the Ocean Special Edition43.8mm
Power Reserve
1A
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
1A200m
Prospex Sea Save the Ocean Special Edition200m
MSRP
1A$223
Prospex Sea Save the Ocean Special Edition$650

Full specifications

Case

3 specs
Diameter
40mm
43.8mm
Lug-to-Lug
46mm
48.7mm
Lug Width
20mm
22mm

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White/Blue
Black
Lume
Swiss blue lume
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
4R35
Power Reserve
41h
Jewels
25
23

Pricing

1 specs
MSRP
$223
$650
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.

Follow this matchup

Get a note when Sheffield 1A vs Seiko Prospex Sea Save the Ocean Special Edition gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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