Side by side

Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special EditionvsZelos Helmsman 3

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

Helmsman 3
ZelosHelmsman 3
MSRP $529

At a glance

13 of 29 specs differ
Diameter
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition40.5mm
Helmsman 340mm
Power Reserve
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition70h
Helmsman 340h
Water Resistance
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition200m
Helmsman 3200m
MSRP
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition$1,250
Helmsman 3$529

Full specifications

Case

4 specs
Diameter
40.5mm
40mm
Thickness
13.2mm
11.5mm
Lug-to-Lug
47.6mm
40mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
SS - Frost
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R35
Miyota 9015
Power Reserve
70h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,250
$529

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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 1965 Heritage Diver's Save the Ocean Special Edition

Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition for its unique dial color and execution, with one owner noting its 44mm lug-to-lug measurement is perfect for most wrists. The dial is inspired by Okinawa's ocean colors and is expected to feature a bright sunburst effect. Accuracy figures for the 6R35 movement range from -10/+10 seconds per day when off/on the wrist, which some find "pretty amazing." However, some owners consider the price of around 1500€ too high, suggesting a value closer to 900€, and there are mixed reports on the 6R movement's accuracy. Overall, owners rate the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition highly for its distinctive dial and wearability, despite some reservations about its price point.

Zelos Helmsman 3

Owners widely praise the Zelos Helmsman 3 for its exceptional finishing and polishing on the titanium case, with some noting it feels nicer than previous models. The unique Titanium Crystalline Dial and Damascus Titanium dial are frequently highlighted as aesthetically pleasing and head-turning features, especially considering the price point. The brushed beads of rice bracelet is described as fitting well, and the on-the-fly clasp is considered amazing. Lume is also noted as great, with lumed crowns being a positive observation. However, some owners report the watch can feel top-heavy with sharp edges, making it uncertain as a daily driver for some. The meteorite bezel is seen by one owner as not adding significant value, and the stock strap's keepers and stitching were considered to detract from the watch's appearance.

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