| Collection | CLASSIC |
| Reference | GK.12.1.1RB.21 |
| Type of movement | Quartz |
| Gender | Gents |
| Movement | Seiko VD53 |
| Water resistance | 5 ATM |
| Case diameter | 41 mm |
| Case material | Stainless Steel 316L |
| Glass | Mineral with sapphire and anti-reflective coating |
| Band material | Stainless Steel |
