Key Design Features
Dial: Fully skeletonized / open-worked dial
Chapter ring: Black inner ring with minute markers
Indices: Applied silver baton hour markers
Hands: Polished silver baton hands with lume
Seconds hand: Central seconds
Logo: Seiko at 12 o’clock
Bezel: Rounded octagonal stainless-steel bezel, brushed with exposed screws
Bracelet: Integrated stainless-steel bracelet, brushed with subtle polished accents
Case & Build
Case size: ~39–41mm
Thickness: ~11–12 mm
Material: 316L stainless steel
Finish: Predominantly brushed with light polished chamfers
Crown: Push-pull crown
Caseback: Exhibition caseback (display back)
Movement
Movement: Seiko NH70 / NH72 automatic (skeleton variant)
Functions:
– Hours
– Minutes
– Central seconds
Hacking: Yes
Hand-winding: Yes
Power reserve: ~41 hours
Frequency: 21,600 bph (3 Hz)
Crystal & Resistance
Crystal: Sapphire crystal
Water resistance: 10 ATM (100 m)