Seiko Cal. 5657 - 421

This Quartz model from 1969 features a 35mm PVD Black case. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-8cafa15a0240]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

Related Models

• Seiko 3815-576
• Seiko 4548-290
• Seiko 7136-601
• Seiko 7150-736
• Seiko 5225-877
• Seiko 0748-174
• Seiko 6681-970
• Seiko 5656-941
• Seiko 7113-871
• Seiko 7150-232
• Seiko 0758-158
• Seiko 6172-197