The dial has ribbing patterns that reflects the depth of a traditional japanese rock garden (known as zen garden); Karesansui. A brief elaboration of Karesansui, it is Japanese's rock gardens existed since early 794AD, where it consist a natural landscape arrangements of rocks and water features and bushes. The main jizz of them is having a special flooring design that uses gravel or sand that is raked to represent ripples in water.

Reincarnated from the Seiko 6105, colloquially known as the "Captain Willard" for its role in the movie Apocalypse Now, has returned for the second time (the first time was in the form of the SLA033).

The 2020 one comes in two iterations: the black dial and bezel SPB151 like the original and a variation. Inside is Seiko's caliber 6R35 with an impressive 70-hour power reserve. And what's more is that the case is actually smaller and thinner than the original 6105. It's now 42.7mm across.

The stainless steel cases of these 2020 62MAS style models feel like a departure from previous interpretations on this design. At a 40.5mm diameter and 48mm lug-to-lug as clever case geometry helps this one to feel old-school compact on the wrist and far slimmer than the 15mm thickness would imply. While the simple skin diver case style and oversized unguarded screw-down crown might feel straight from the ’60s, Seiko sets these models apart with thoroughly modern attention to detail.