Side by side

Bremont SupernovavsSeiko 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.

Supernova
BremontSupernova
MSRP $8,250

At a glance

15 of 29 specs differ
Diameter
Supernova41mm
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
Power Reserve
Supernova40h
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
Water Resistance
Supernova100m
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
MSRP
Supernova$8,250
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
41mm
42.7mm
Thickness
14.4mm
13.2mm
Lug-to-Lug
46.4mm
Lug Width
14.4mm
20mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
$8,250
$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.

Bremont Supernova

The Bremont Supernova is praised for its new ENG375 movement, big date, and power reserve indicator, with its 40mm steel case featuring mixed finishing and an integrated bracelet. Owners note good but not great lume, well-balanced proportions, and a premium feel for its price, despite a 173-gram weight. Some community members find the design derivative and the £8,000 price tag overly optimistic, with mixed views on the date window and crown guard. The proprietary Trip-Tick case construction offers shock protection, and the movement provides a 65-hour power reserve. Overall, owners and reviewers highlight the integrated bracelet and proprietary movement as key strengths of the Bremont Supernova.

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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