Seiko Uhrglas 220W01AL – Tokelaito Mineralglas – für Seiko Chorus Week – NOS Quarz between the manufacturers of the

between the manufacturers of the King and Grand Seiko lines – led to a remarkable surge in innovation

ISO 6425 certified (DNV) – Domed sapphire box crystal with internal anti-reflective coating – Mantramatic MM01 based on Sellita SW200-1

Ober-Ramstädter Str

Width at the clasp: 16 mm

– Housing: Stainless steel – Glass: Sapphire glass – Band: integrated stainless steel band – Case back: transparent (viewing case)

Seiko Uhrglas 220W01AL – Tokelaito Mineralglas – für Seiko Chorus Week – NOS Quarz between the manufacturers of theOriginal Seiko Tokelaito () watch crystal with reference 220W01AL , from unused old stock (NOS). Tokelaito is Seiko's historical name for a hardened mineral glass that was used in numerous models of the 1960s and 1970s. This glass was demonstrably used in the rare Seiko Chorus Week series an elegant vintage collection for which original parts are now almost impossible to find. The WP marking on the packaging stands for the waterproof version ("Water