Side by side

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special EditionvsHELM Vanuatu Titanium

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

Vanuatu Titanium
HELMVanuatu Titanium
MSRP $350

At a glance

13 of 29 specs differ
Diameter
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
Vanuatu Titanium42mm
Power Reserve
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
Vanuatu Titanium40h
Water Resistance
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
Vanuatu Titanium300m
MSRP
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350
Vanuatu Titanium$350

Full specifications

Case

6 specs
Diameter
42.7mm
42mm
Thickness
13.2mm
14mm
Lug-to-Lug
46.4mm
50mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Yes
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

3 specs
Caliber
6R35
Seiko Instruments NH35
Power Reserve
70h
40h
Complications
None
Date

Pricing

1 specs
MSRP
$1,350
$350

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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 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.

HELM Vanuatu Titanium

The HELM Vanuatu Titanium is widely praised by owners for its lightweight titanium construction, brushed gunmetal finish, simple design, legible hands and markers, and excellent lume, offering significant value at $300. Owners note the watch looks good in person and express enthusiasm for their existing Vanuatu Ti models. Some owners wish for Miyota 9x movements in place of the NH series. The unhardened titanium scratches easily, and the 42mm case may be too large for smaller wrists. A significant drawback is the long waiting list. On balance, owners rate the HELM Vanuatu Titanium highly for its lightweight titanium build and excellent lume at the price point.

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