Seiko Cal. 6642 - 687

This Hand-Winding model from 1980 features a 40mm Stainless Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-a23f21a03e96]

Also known as: UFO, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1980

Related Models

• Seiko 5658-529
• Seiko 3866-776
• Seiko 0745-377
• Seiko 7045-954
• Seiko 6287-967
• Seiko 6697-844
• Seiko 0772-885
• Seiko 3896-160
• Seiko 6673-174
• Seiko 4532-411
• Seiko 4451-591
• Seiko 6676-685