
Typical, you wait all year for a European exclusive watch from Seiko or Grand Seiko and two come along at once. From Grand Seiko we just had the new Mount Iwate Autumn Dusk and from Seiko we have the new ‘Silfra’ collection consisting of a Prospex Sumo and Tortoise, both of which are European exclusive limited editions. Silfra, for those unfamiliar with your plate tectonics, is the fissure that runs through Iceland where the North American and Eurasian Plates are drifting apart – it makes sense for this prominent European natural feature to be the inspiration for a European exclusive collection.
As there are two watches here and they are quite distinct from each other, let’s tackle them individually. First up we have the ‘Silfra’ Prospex Sumo Diver European Exclusive Limited Edition.
Seiko ‘Silfra’ Prospex Sumo Diver European Exclusive Limited Edition SPB431J1
The Sumo is one of Seiko’s many signature diving watches, sitting alongside models like the Turtle, Samurai and Tuna. What makes the Sumo distinct is its large size, measuring 45mm in diameter, and its big, curved sides that are slightly more facetted than the smoothness of the Turtle. Despite being named after a Japanese fighting tradition, thematically it makes just as much sense for big, burly Icelandic Vikings.
What marks this out as a special edition is the dial, which is a fairly traditional dive watch display with oversize hour markers, plenty of lume and a vibrant seconds hand for excellent low light legibility. The background of the dial is also pretty familiar as it’s a blue gradient piece like you’ve seen on a hundred dive watches before. However, when you look closer at the gradient you’ll see what makes it unique.
Most dive watches with gradients feature a radial pattern with an even tone shift from the centre to the periphery in a uniform manner or sometimes they have a vertical line of gradient that starts light at 12 o’clock and gets darker towards 6 – both of which emulate the darkening water as seen in the depths. The ‘Silfra’ Sumo has a horizontal gradient that starts dark at 9 o’clock, reaches a peak of lightness at the axis of 12 and 6 and then gets dark again at 3. It creates column of light down the middle that mirrors the experience of swimming in the Silfra fissure, where there are stone walls on either side of you and water down the centre. It’s really smart and really subtle dial design and I love it.
Housed inside is the 6R35 automatic movement with 70-hour power reserve. A really solid movement that justifies the £900 price tag. The Seiko ‘Silfra’ Prospex Sumo Diver European Exclusive Limited Edition SPB431J1 is limited to 2,000 pieces and is available exclusively in Europe.
Price & Specs
Ref: SPB431J1|
Case/dial: 45mm x 52.6mm diameter x 12.9mm thickness, stainless steel case, blue dial|
Water resistance: 200m (20 bar)|
Movement: Seiko calibre 6R35, automatic with manual winding, 24 jewels, 4,800 A/m magnetic resistance<|
Frequency: 21,600 vph (3 Hz)|
Power reserve: 70h|
Functions: Hours, minutes, seconds, date|
Strap: Stainless steel bracelet with three-fold clasp with secure lock, push button release and extender with additional fabric strap|
Price/availability: £900, limited edition of 2,00 pieces, exclusively available in Europe
More details at Seiko Boutique
Seiko ‘Silfra’ Prospex Tortoise European Exclusive Limited Edition SRPK77K1
The Tortoise is an interesting watch in the Prospex stable because much as the name implies it’s the land-based version of their Turtle design. Style-wise it’s more or less identical to the Turtle, it even still has 200m water resistance, and the only major change is that it has a compass bezel instead of dive timer. For the ‘Silfra’ Tortoise, Seiko have given that bezel a nice two-tone colouration in brown and black.
Similar to the Sumo above, most of the party here is happening on the dial. The colour is officially described as green although more often in the photos provided it looks dark grey or anthracite. It also has this cool horizontal graining effect that up close almost resembles the Grand Seiko Birch pattern rotated by 90 degrees and miniaturised. The result of which is that the dial looks as if it’s made of igneous rock, which to continue our geography lesson from earlier is the type of rock found in volcanic regions like Iceland.
If you’ve read the article on the Autumn Dusk that I included at the start of this article, it’s this kind of attention to detail that I felt was missing from that watch. The Autumn Dusk is a European exclusive because, well, it just is. The Seiko ‘Silfra’s are European exclusive because they’re intrinsically linked to Europe both thematically and in design.
The Seiko ‘Silfra’ Prospex Tortoise European Exclusive Limited Edition SRPK77K1 houses the 4R35 automatic movement with 41-hour power reserve. It’s a bit lower spec than the Sumo but between that and the smaller 42.4mm diameter it’s also more accessible as well. It’s only £650 and limited to 1,400 pieces.
Price & Specs
Ref: SRPK77K1|
Case/dial: 42.4mm x 45.2mm diameter x 11.7mm thickness, stainless steel case, green dial|
Water resistance: 200m (20 bar)|
Movement: Seiko calibre 4R35, automatic with manual winding, 23 jewels|
Frequency: 21,600 vph (3 Hz)|
Power reserve: 41h|
Functions: Hours, minutes, seconds, date|
Strap: Stainless steel bracelet with three-fold clasp and push button release with additional fabric strap|
Price/availability: £650, limited edition of 1,400 pieces, exclusively available in Europe
More details at Seiko Boutique
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