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Some Call It A Baby Marine Master 200 & Some Call It A Sumo! Meet Seiko’s SBDC061!

April 24, 2019 4 min read

Some Call It A Baby Marine Master 200 & Some Call It A Sumo! Meet Seiko’s SBDC061!

20mm Super-J Louis JUB 316L Stainless Steel Watch Bracelet Straight End, V-Clasp Brushed SS201820B087S

Seiko’s Prospex JDM Baby Marinemaster 200 Meter Diver was first introduced back in Baselworld 2018, along one of Seiko’s finest, the SLA025, 6159 reissue was front and center – for a price of $5,400. The two models designs are much look and feel from the designs from the sixties, but its functions are up to date with top tier capabilities that meets today’s standards for diver’s watches.

More round and sturdy solid link Angus-J Louis JUB watch bracelet is an upgraded version of Super-J Louis JUB watch bracelet. All links composed by scaled up solid 316L stainless steel beads and well-built precise screws, the more robust it is. New Screw-in adjustable details with open end on both sides can lower the risk of the screw loosening during dynamic.

20mm Reissue Retro Razor 316L Stainless Steel Brushed Watch Band, V-Clasp Button Double Lock SS201820B090S

In terms of appearance, the SBDC061 weighs at a approximately 185 grams stainless steel case measuring at 44mm wide, 13.1mm thick, and 51mm lug to lug. By the measurement readings for the SBDC061, one may think if the watch was an oversize Sumo series, or perhaps a baby marine master 200, in which was named after by watch enthusiasts from around the world.

The feature razor blade link was hollowed from a solid 316L stainless steel block; size was modified to a better proportion plus new screwing details. The shape and the slots cut into the form of the mini blade allow it to bend smoothly following your wrist. This thickness improved retro Razor bracelet with clean lines and sturdy look that beyond the previous version is designed for 20mm lug size watches.

20mm Pilot Black Kevlar Finish Rivet Lug Watch Strap, Beige Stitching, Brushed 20P18BIW01K1A84

Here comes the new generation of Kevlar liked material, this time we applied it on genuine leather with improved fine texture and special touch. A special coating was applied to the watch strap to give extra water-repellent protection which is not so common in the leather watch strap. Pilot style Watch strap with rivets ideal for the pilot watches.

MiLTAT 20mm Genuine Olive Brown Distressed Leather Watch Strap Extra Soft, Beige Stitching 20P18BBU54C1C51

This extra soft leather watch band made from imported Italian distressed calf leather. 20mm leather watch straps. Extra padding to create an obvious thickness changes from watch case down to buckle, an ideals diving watch replacement leather straps where make it also appropriate to wear at your working hour.

20mm MiLTAT G10 Grezzo NATO Watch Strap, Camel Brown Distressed Calf Leather Extra Soft, Sandblasted 20P20EBU57S6Q09

One of the main selling points for the SBDC61 is certainly because of what its packing on the inside. 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, which is one grade above stuff like the commonly known as the 7s26, which is the movement in the Seiko SKX007.

MiLTAT G10 Grezzo imported Italian distressed calf leather watch band. Approximate 1.4mm thick, tight up with three rings and solid screw-in buckle. Hardwares are all in 316L stainless steel.

20mm G10 Nato James Bond

20mm G10 Nato James Bond Watch Strap also named as Bond Strap. This is the same style of strips pattern watch band worn by James Bond on a RX SUB (portrayed by Sean Connery). Nato James Bond Strap looks great on any military or military style watches.

This NATO strap is made from straight woven thread nylon. 316L High Quality Stainless Steel buckle and loop keeper ensures a good tight fit and rust resistant. The edges and holes of the NATO straps are ultrasonic welded to ensure that it is free from frills and rough sharp edges.

If we were to discuss with how the SBDC061 model is compared to a Seiko 6157-7001 for instance:

Seiko 6159-7001 Diver Seiko Prospex SBDC061 Diver
Large mono-block case Large case with screw-down case-back 
300 meter water rating 200 meter water rating
Hardlex Cyrstal Sapphire Crystal 
Rubber strap  Bracelet with divers’ extension 
Calibre 6159A, 36,000 bph movement Calibre 6R15, 21,600 bhp movement 


Maker: Seiko Japan
Movement: Caliber 6R15. Seiko Automatic
Accuracy: +25/-15 sec per day
Dial: Matte black with applied luminous indexes
Luminous: Lumibrite
Date: 3 O’clock
Case: Stainless steel
Case coating: Diashield
Crown: Screwdown
Bezel: Uni-directional with 120-clicks for full rotation
Lug: 20 mm
Crystal: Sapphire with anti-reflective coating
Strap: Stainless steel
Water resistance: 200 m
Dimensions: 44 mm in diameter, 51 mm lug to lug, 13.1 mm thick
Weight: 184 grammes
Power Reserve: ~50 hours
MSRP: YEN110,000 (excluding tax)
Purchase price: YEN82,633
Source: Yodobashi Camera Hakata, Fukuoka City
Date: 19 June 2018

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