Side by side

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special EditionvsZelos Spearfish 3

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

Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

12 of 29 specs differ
Diameter
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
Spearfish 340mm
Power Reserve
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
Spearfish 340h
Water Resistance
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
Spearfish 3200m
MSRP
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350
Spearfish 3$749

Full specifications

Case

4 specs
Diameter
42.7mm
40mm
Thickness
13.2mm
11.5mm
Lug-to-Lug
46.4mm
40mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Diver - Forged Carbon
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R35
La Joux-Perret G100
Power Reserve
70h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,350
$749

Follow this matchup

Get a note when Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition vs Zelos Spearfish 3 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 1970 Heritage Diver's Save the Ocean Special Edition

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition is praised for its beautiful design and refinement over previous models, featuring vertically textured glacier-inspired dials. Owners, however, consider the €1500 RRP too high, suggesting a price closer to €900-€1000, noting the aluminum bezel insert instead of ceramic. Some owners report the 6R movement runs slow. On balance, owners find the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition beautiful and a refinement, but the price and aluminum bezel are points of contention.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its 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.