Seiko Cal. 3818 - 645

This Spring Drive model from 1979 features a 38mm Stainless Steel case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-ecb84c4281ee]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1979

Related Models

• Seiko 4583-522
• Seiko 4560-645
• Seiko 4596-143
• Seiko 7065-394
• Seiko 5653-431
• Seiko 6326-214
• Seiko 6399-890
• Seiko 6634-304
• Seiko 6343-476
• Seiko 0787-526
• Seiko 0710-326
• Seiko 6653-147