The SD1972 is a homage to the Seiko "King Turtle" which was a premium version of the Seiko 6309 "Turtle" which is often confused with the Seiko 6105 "Willard". However,the 6309 had a much more utilitarian look and also a slightly bigger dial with different markings and a bigger lug width. The "King Turtle" was then given Day/Date with a magnifier and was generally more refined but was then put at a higher price point so it could be potentially worn as a dress watch without offending all your guests at your exclusive dinner party in Mayfair. 
 
The Specs -
 
Sapphire Crystal Glass
NH36 Automatic Movement
Day/Date with magnifier
120 Click Rotational Ceramic Bezel
200m Water Resistance
Screwdown Crown
Screwback Case
316L Stainless Steel Case
Stainless Steel Strap and Extra Steeldive branded rubber strap included
Hacking Movement
C3 Luminova on the face
BGW9 on the bezel
Lug Width - 22mm
Case Diameter - 45mm
Lug to Lug - 47.7mm
Case Thickness - 13.5mm
Weight - 208g
Hard Presentation Box and warranty card
 
Overall the SD1972 is a superb watch for the money. It is reliable, hard-wearing and looks fantastic. It is a watch that constantly gets positive comments from owners and admirers and definitely makes the wearer stand out from the crowd.We also supply an extra branded rubber strap with strap tool and pins so you can give the watch a different look if you want.