Ultrahuman
Ultrahuman Ring AIR

Published: March 21, 2026
Video Description
Most people know Seiko… but very few have seen this level of watchmaking.
In this video, we explore the highest level of Japanese horology through Grand Seiko Masterpiece and Credor—featuring some of the most exclusive, hand-crafted watches ever made.
From Spring Drive precision to hand-painted porcelain dials and tourbillons, these pieces represent the absolute peak of what Seiko is capable of.
Watches Featured:
Grand Seiko SBGD202 – 8 Day Spring Drive (Rose Gold, Black Dial)
Grand Seiko SBGD201 – 8 Day Spring Drive (Platinum)
Grand Seiko Kodo Constant Force Tourbillon (SLGT005)
Credor Eichi II (Porcelain Dial – Multiple Variations)
Credor Cherry Blossom Hand Engraved Skeleton
Credor Fugaku Tourbillon - based on The Great Wave off Kanagawa (Hokusai)
Whether you're into high horology, craftsmanship, or just discovering what exists beyond mainstream Seiko, this is a side of watchmaking most people never see.
Timestamps
0:00 - Grand Seiko Masterpiece 8-Day Spring Drive
4:47 - Grand Seiko Kodo Constant Force Tourbillon "Light"
11:53 - Credor Eichi II
16:55 - Credor Cherry Blossom Hand Engraved Skeleton
18:45 - Credor Fugaku Tourbillon
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