Seiko Cal. 3831 - 587

This Spring Drive model from 1967 features a 46mm Two-Tone case. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-236bcd6222d0]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1967

Related Models

• Seiko 5643-279
• Seiko 0733-877
• Seiko 6259-229
• Seiko 0760-861
• Seiko 7185-683
• Seiko 4449-778
• Seiko 6296-218
• Seiko 3818-792
• Seiko 0780-686
• Seiko 6225-721
• Seiko 6679-191
• Seiko 4494-541