Seiko Cal. 6636 - 897

This Solar model from 1973 features a 37mm Stainless Steel case. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-cca7424becf9]

Also known as: Helmet, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1973

Related Models

• Seiko 7185-834
• Seiko 6384-418
• Seiko 6129-203
• Seiko 7014-206
• Seiko 6277-894
• Seiko 3880-273
• Seiko 7021-695
• Seiko 4541-145
• Seiko 6135-874
• Seiko 4469-533
• Seiko 7024-326
• Seiko 5683-689