Spec SEIKO Tipe SNKN87K1 dibawah ini hanya fitur utamanya. Spec lengkap dapat dilihat pada Web Seiko. Automatic Movement 21 Jewels Hardlex Mineral Crystal Silver / White Dial Gold Tone Luminous Hands and Markers Pull / Push Crown See Through Case Back Fold Over Clasp with Push Button Day and Date Window at 3 o’clock Position