Seiko Cal. 6618 - 636

This Solar model from 1991 features a 40mm PVD Black case. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-b1ffe392808e]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1991

Related Models

• Seiko 6385-932
• Seiko 4420-577
• Seiko 6226-912
• Seiko 6160-516
• Seiko 3872-328
• Seiko 7057-331
• Seiko 4573-223
• Seiko 7053-726
• Seiko 6677-957
• Seiko 5244-252
• Seiko 7189-346
• Seiko 6663-613