Seiko Cal. 3866 - 887

The 3866-887 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-9bc6acfa82e1]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1974

Related Models

• Seiko 4562-922
• Seiko 4545-681
• Seiko 4497-586
• Seiko 5295-827
• Seiko 5294-989
• Seiko 6670-939
• Seiko 5621-705
• Seiko 7037-151
• Seiko 5648-625
• Seiko 6683-176
• Seiko 4441-720
• Seiko 4577-831