Seiko Cal. 3859 - 531

This Spring Drive model from 1973 features a 37mm PVD Black case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-2eb4997acc39]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1973

Related Models

• Seiko 3896-412
• Seiko 7087-492
• Seiko 5293-843
• Seiko 6157-192
• Seiko 7021-129
• Seiko 6617-150
• Seiko 3837-750
• Seiko 6326-494
• Seiko 7041-882
• Seiko 6691-553
• Seiko 7011-174
• Seiko 4431-332