Seiko Cal. 3821 - 317

This Hand-Winding model from 1983 features a 41mm PVD Black case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-e0c8b78c9e7b]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1983

Related Models

• Seiko 5226-134
• Seiko 6259-272
• Seiko 6354-955
• Seiko 6275-952
• Seiko 4423-381
• Seiko 4448-628
• Seiko 0744-935
• Seiko 4457-245
• Seiko 6274-250
• Seiko 0791-168
• Seiko 6363-510
• Seiko 6289-119