Seiko Cal. 6683 - 989

This Spring Drive model from 1974 features a 35mm Titanium case. It features a Silver dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-8bd79e9626c4]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1974

Related Models

• Seiko 5258-849
• Seiko 6395-493
• Seiko 4498-536
• Seiko 6125-219
• Seiko 4549-225
• Seiko 4451-281
• Seiko 4534-378
• Seiko 4465-749
• Seiko 6676-125
• Seiko 0752-783
• Seiko 4553-401
• Seiko 0764-486