Seiko Cal. 3860 - 820

This Spring Drive model from 1981 features a 44mm Gold-Plated case. It features a Silver dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-cd8ee8b3ed44]

Also known as: Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

Related Models

• Seiko 6116-608
• Seiko 6281-809
• Seiko 6128-866
• Seiko 6142-992
• Seiko 6636-781
• Seiko 3863-924
• Seiko 5615-430
• Seiko 0721-847
• Seiko 6699-154
• Seiko 3822-187
• Seiko 7075-784
• Seiko 3835-721