Seiko Cal. 5656 - 820

This Automatic model from 1972 features a 34mm PVD Black case. It features a White dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-91672e71909f]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1972

Related Models

• Seiko 4494-621
• Seiko 7126-773
• Seiko 6674-301
• Seiko 5214-646
• Seiko 6155-539
• Seiko 6321-982
• Seiko 5643-660
• Seiko 5655-955
• Seiko 4488-916
• Seiko 3854-146
• Seiko 3821-976
• Seiko 5629-846