Seiko Cal. 6638 - 985

This Solar model from 1989 features a 35mm PVD Black case. With its 18mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-2f92ffeb2272]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1989

Related Models

• Seiko 7075-183
• Seiko 4473-345
• Seiko 0730-880
• Seiko 6311-840
• Seiko 5280-167
• Seiko 5647-687
• Seiko 6628-858
• Seiko 5271-346
• Seiko 5224-523
• Seiko 7094-229
• Seiko 6191-387
• Seiko 7096-173