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Prospex for Seiko means “Professional Specification” that their timepieces in this category are built with very high standards to be used by professionals. One that stands out to collectors around the world and known for one of great value for money Japanese Domestic Model(JDM) is the latest in their scuba diver series; the Sumo collection. Today, we would like to introduce to you Seiko’s Black Series, the second edition after the 2017 release, while this round includes a full black Sumo.
The Black Series is famed for their black-on-black colour, along with faux-vintage tone lume and a bright orange minute hand. The SBDC095 nicknamed by the Seiko community as “Black Series Sumo,” featuring their most recent 6R35 automatic movement and limited to 7000 pieces worldwide.
The Seiko Prospex 200M Automatic Black Series Sumo Sapphire 3rd Gen Ref. SBDC095 precursor initially released in 2007 under the reference. SBDC001/003, but now with a few significant changes made on the latter.
|Seiko Prospex 200M Automatic Black Series Sumo Sapphire 3rd Gen - Ltd Ed 7000pcs Ref. SBDC095
The overall look of the Sumo is one of a kind and stayed through to its roots since 2007; being quirky while still wears like a professional dive watch for more than a decade, including this new black edition.
Before getting into its specifications, we want to touch more on the milestone of this magnificent engine that Seiko uses for its JDMs. Seiko started to have the 6R15 engine since 2005, which derive from the well known 7S26 movement. Seiko collectors proudly admire the 7S and 6R family as one of their best in-house manufactured calibers found in their watches.
Well, since the 6R15 produced in 2005, the Seiko Sumo range adopted this movement since day one, and have relied on it until 14 years later, where Seiko decided that they should refresh the collection with the latest engine- the 6R35.
Therefore, the Seiko Prospex Black Series Sumo Sapphire Ref. SBDC095 is the pioneer to have a full black case with the new movement; powered by Seiko’s latest automatic caliber, 6R35, which is an upgrade from the workhorse 6R15. It still operates at 21,600 BPH (3 Hertz) with hacking and hand winding capabilities. Its main updates are the increase of jewels to 24 and a power reserve of 70 hours from 50 hours on previous versions.
|New Seiko Calibre 6R35 With 70 Hours Power Reserve|
The 200m water resistant Sumo stainless steel case coated fully in full black PVD embodies the beautiful craftsmanship and fluid line while being sleek looking. Measurin45mm case without the crown, and has a lug to lug length of 52.6mm, and a height of about 12.9mm, with a lug width of 20mm.
Although one might think its a full matte watch, it begs to differ with mixture of satin brush and Seiko high polishing on the sides can be seen on the whole watch with crisp edging, especially around the lugs.
Therefore, all these have enhanced the Sumo feels a notch higher than other dive watches in the same price point for many years, and many more to come.
|Iconic Sumo Case Design with PVD Coating
The two-tone dark grey/ black bezel is anodised aluminium, has prominently printed markings on it (keeping the Sumo theme) with more sleek numberings. It rotates buttery smooth into 120 positions has zero free play in a clockwise direction. Similar to the JDM models, the screw-down crown at four o’clock now has a sterile approach while still allowing one to make time adjustment with ease.
Onto the back of the watch, the screw-down case back allows 200m water-resistant and is also brushed, featuring the recognizable tsunami emblem that is a staple on the other Seiko divers. Oh, please don’t forget about the lug holes, allowing swapping of straps with ease.
The watch’s unique aesthetic along with the fat markers on the bezel, now the nickname of “Sumo” starts to ring a bell. Further, it has an upgrade that all Seiko fans have been requesting- which is having a sapphire crystal for the Sumo, and this one will be the first to feature one. The black tone dial done in matte reflects the very first Sumo; the SBDC001, being utilitarian and attractive. It manages to stay serious while still brings out the whole Sumo affairs that only this collection has. With all that said, legibility is excellent as on all Sumos.
The impeccable hour markers and hands are keeping the Black Series ethos, having done in caramel/ faux patina colorway that are both generously coated with Seiko’s LumiBrite, allowing it to glow brightly in the dark for hours. The minute hand further done so in bright orange to match with the vintage lume markers while still being the “essential” hand during dives. Seiko has also tweaked a little to the 12 o’clock marker, appearing to be more elegant than before.
The design calls for a matching black silicon rubber strap compliments the watch beautifully, giving this new Black Sumo a seamless look and feel.
All in all, for more than a decade, the Sumo is still one of the best bangs for buck Seiko dive watch. Some might complain about the price increase from its predecessor, but we beg to differ — limited to 7000 pieces, the Seiko Prospex 200M Automatic Black Series Sumo Sapphire 3rd Gen Ref. SBDC095 is one hell of a watch that has been the first in its class to have a brand new movement and full black case with rare vintage coloured markers. While it stays true to its formidable durability and legibility, with a proven design that started its cult following, featuring excellent casework, and unique dial layout.