Side by side

Sheffield Allsport Diver 1vsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition

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.

Sheffield Allsport Diver 1

Owners widely praise the Sheffield Allsport Diver 1 for its superb quality and sturdiness at an affordable price, with many calling it a hit and a no-brainer purchase. The blue dial is a particular highlight, and the watch is noted to resist scratches well despite heavy use. One owner dislikes the lack of a quick-set date, finding it cumbersome to adjust. Overall, owners rate the Sheffield Allsport Diver 1 highly for its surprising quality and appearance at its price point.

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition is widely praised for its excellent quality and finishing relative to its price point, featuring a beautiful case, bracelet, and strong Lumibrite lume. Enthusiasts and reviewers highlight the comfortable 42mm case size and the distinctive 4 o'clock crown position. The watch is powered by the in-house 6R54 automatic movement, offering a 72-hour power reserve and rated accuracy of -5/+10 seconds per day, though one source notes the GMT function is secondary. Some find the 4:30 date window divisive, and the bezel clicks are described as quieter than expected. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition highly for its refined design and strong value proposition.

At a glance

12 of 29 specs differ
Diameter
Allsport Diver 140mm
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition42mm
Power Reserve
Allsport Diver 1
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition72h
Water Resistance
Allsport Diver 1200m
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition300m
MSRP
Allsport Diver 1
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition$1,750

Full specifications

Case

5 specs
Diameter
40mm
42mm
Thickness
13mm
13.3mm
Lug-to-Lug
48mm
48.6mm
Lug Width
20mm
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH35
6R54
Power Reserve
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,750
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