Seiko Cal. 6684 - 421

The Seiko 6684-421 represents an important milestone in Seiko's 1971 lineup. Powered by the 6684 caliber with 20j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-70c83da07132]

Also known as: Shogun, Pogue

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1971

Related Models

• Seiko 6281-750
• Seiko 4424-515
• Seiko 4494-273
• Seiko 5253-809
• Seiko 7187-236
• Seiko 4510-146
• Seiko 6117-883
• Seiko 0758-553
• Seiko 7060-207
• Seiko 3812-218
• Seiko 6298-330
• Seiko 7049-915