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Prospex for Seiko basically means "Professional Specification" that their timepieces in this category are built with very high standards to be used by professionals. Following the incredible success of last year's SBDC051/53 models. Seiko returned to their history books and introduced a pair of Prospex divers based on their 1968 vintage reference 6159 and their now-discontinued MarineMaster 300, ref. SBDX001/017.
|Seiko Prospex 200M Automatic Black “Baby MM” Ref. SBDC061|
Introduced in BaselWorld 2018, the SBDC061 and SBDC063 are probably Seiko's most anticipated diver models this year. These new timepieces also echo the design of the late 60s original, but are thoroughly up-to-date in their functions that meets Seiko's stringent standards for diver's watches.
The SBDC061/63 are the “Japanese Domestic Model” equivalents of the international model SPB077/79. As the name implies, they are meant only for the Japanese market.
The Seiko Prospex 200M Automatic Black “Baby MM” Ref. SBDC061 is powered by Seiko's automatic caliber, 6R15, operating at 21,600 BPH (3 Hertzs) with hacking and hand winding capabilities. It has 23 jewels with a power reserve of 50 hours through a Spron 510 mainspring.
|Marine Master 300, ref. SBDX017, inspired case design and finishing|
The 200m water resistant stainless steel case measure 44mm case without the crown, has a lug to lug length of 51mm, and a height of about 13.1mm, with a lug width of 20mm. The SBDC061/63 has a very keen resemblance to the MM300 that it is based upon in terms of dimensions and case design. The curvy case, the flat surfaces on top of the lugs and the straight lines on the sides are some of the design idea carried over from the MM300. On the wrist, it wears very much like the MM300 but with a thinner profile, keeping a svelte proportion on wrist.
This Baby MM's case is treated with their new Seiko’s DiaShield coating on the case and bracelet, providing better scratch-protection and extra corrosion resistance. The bezel rotates buttery smooth into 120 positions just like their precursor, with minimal free play in a clockwise direction. Further refinement on it's case, there are mixture of satin brush and Seiko high-polishing on the sides that can be seen throughout the watch. This can only be done with Seiko's signature Zaratsu polishing technique that adds a touch of contemporary refinement.
|Seiko's Zaratsu case finishing|
Yet another MM300 reissued design is probably the screw down crown at four o'clock. Moving to 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 staple on the other Seiko divers. The case does comes with lug holes allowing swapping of straps with ease.
Onto the dial, the design is based on the MM300 though with a different handset. This new handset is still in-synced with the rest of their current Prospex dive watches (similar to SBBN031/33), providing maximum legibility. Despite the difference in the hands, Seiko follows closely the original Marinemaster's hour markers and dial finishing; the black dial is matte and applied markers are contemporary. The hands carry long-lasting Lumibrite so as to be highly legible even in dark water.
Like last year's SBDC051/53, the design of the steel bracelet compliments the watch beautifully, with a seamless look and feel. The bracelet is a step above the other Prospex collection like the Sumo and Shogun. Compared to the regular flat bracelet design, the SBDC061/63's link has an angled design and a more solid feel overall.
|Seiko's LumiBrite luminous for in-the-dark operations|
Overall, the Seiko Prospex 200M Automatic Black “Baby MM” Ref. SBDC061 is a very worthy addition to the Prospex collection. For those who missed out on owning the Marine Master 300, ref. SBDX017, or simply found them to be too expensive, the SBDC061/63 is certainly a good representation of the now discontinued model with a cult following. A good looking watch with great dimensions. Tons of wrist presence. Without a doubt, this model that will find its way into many diver watch lover's collection and one that will stand the test of time.
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