Heritage Collection
The “silken sunray pattern” dial

SBGA437G

SBGA437

Coleção Heritage

Características

An archetypal Grand Seiko design, with a silken dial

Shinshu, the region where all Grand Seiko Spring Drive watches are created, was once a major center of silk production. This classic design has a dial whose silken sunray pattern pays tribute to this heritage. The fine grain of the pattern radiates outwards and catches the light at every angle. It has a soft texture, as if it were the finest silk, which can only be created by the application of soft silver, using a special method of silver plating.
Thanks to Grand Seiko’s unique Spring Drive movement, the seconds hand glides silently and smoothly, with no “tick”, across the dial, perfectly reflecting the natural and continuous flow of time. The power reserve is 72 hours when fully wound and is shown on the discreet indicator next to the eight o’clock index.

Especificações

Exterior
Exterior: Aço Inoxidável
Verso da caixa: Fundo de caixa rosqueada
Material do cristal: Cristal de safira de dupla curvatura
Revestimento do cristal: Revestimento antirreflexo na superfície interna
Tamanho da caixa: Diameter 40.0mm Lug-to-lug 46.6mm Thickness 12.3mm
Largura da pulseira: 20mm
Tipo de fecho: Fecho triplo com botão de pressão
Perímetro da pulseira: 203mm
Movimento
Número de calibre: 9R65 Instructions
Tipo de movimento: Spring Drive
Reserva de marcha: Aprox. 72 horas (3 dias)
Precisão: ± 1 segundo por dia / ±15 segundos por mês (média)
Functions
Resistência à água: 10 ATM
Resistência magnética: 4,800 A/m
Outros detalhes / características:
  • Coroa rosqueada
  • 30 rubis
  • Exibição de Reserva de marcha