Side by side

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special EditionvsVario 1918 SG60 Merlion Trench

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

1918 SG60 Merlion Trench
Vario1918 SG60 Merlion Trench
MSRP $428

At a glance

14 of 29 specs differ
Diameter
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
1918 SG60 Merlion Trench37mm
Power Reserve
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
1918 SG60 Merlion Trench40h
Water Resistance
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
1918 SG60 Merlion Trench100m
MSRP
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350
1918 SG60 Merlion Trench$428

Full specifications

Case

6 specs
Category
Diver
Field
Diameter
42.7mm
37mm
Thickness
13.2mm
10mm
Lug-to-Lug
46.4mm
45mm
Lug Width
20mm
18mm
Water Resistance
200m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
6R35
Miyota 82s5
Power Reserve
70h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,350
$428

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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.

Vario 1918 SG60 Merlion Trench

The Vario 1918 SG60 Merlion Trench is widely seen as a commemorative keepsake, particularly for those celebrating Singapore's 60th anniversary or born in 1965. Reviewers note its vibrant red enamel dial and 37mm steel case with fixed wire lugs, along with 100m water resistance. One owner reported the watch is "patina-ing well" after three years, and the Miyota 82S5 movement is considered a reliable, cost-effective base. Overall, owners and reviewers appreciate the Vario 1918 SG60 Merlion Trench as a unique souvenir and tribute piece, with its distinctive enamel dial being a key draw.

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