Seiko Cal. 6684 - 399

The Seiko 6684-399 represents an important milestone in Seiko's 1980 lineup. It features a White dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-30806979b309]

Also known as: Sumo, Flighty

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1980

Related Models

• Seiko 6630-205
• Seiko 3819-536
• Seiko 5267-544
• Seiko 5624-385
• Seiko 6643-676
• Seiko 6116-994
• Seiko 4455-914
• Seiko 6191-367
• Seiko 3850-647
• Seiko 6663-295
• Seiko 6125-749
• Seiko 0726-532