Side by side

Nivada Grenchen Antarctic 35mm AutomaticvsSeiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

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

At a glance

15 of 29 specs differ
Diameter
Antarctic 35mm Automatic35mm
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
Power Reserve
Antarctic 35mm Automatic36h
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
Water Resistance
Antarctic 35mm Automatic200m
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
MSRP
Antarctic 35mm Automatic$945
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Full specifications

Case

6 specs
Category
Tool
Diver
Diameter
35mm
42.7mm
Thickness
10.1mm
13.2mm
Lug-to-Lug
46mm
46.4mm
Finish
Brushed + Polished + Satin
Brushed and polished
Caseback
Display
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White
Black
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
ETA 2824/Sellita SW200
6R35
Power Reserve
36h
70h
Jewels
25
24
Complications
GMT
None

Pricing

1 specs
MSRP
$945
$1,350

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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.

Nivada Grenchen Antarctic 35mm Automatic

The Nivada Grenchen Antarctic 35mm Automatic is lauded for its authentic vintage proportions, slim 7mm case profile, and elegant, understated design, with reviewers highlighting its charm, versatility, and friendly price. Owners and reviewers praise its comfortable 35mm size and long lugs for good wrist presence, manual-wind Landeron 21 movement, and applied indices. Some owners note an odd transition between the fully high-polished case and the dull outer links of the Beads of Rice bracelet. Water resistance is limited to 50 meters due to the push-pull crown, and lume is not particularly strong, with one reviewer finding the beige lume on a white dial a slight mismatch. The 36-hour power reserve is also noted. Overall, owners and reviewers rate the Nivada Grenchen Antarctic 35mm Automatic highly for its faithful vintage recreation and value at its price point.

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.

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