Seiko Cal. 5643 - 634

This Automatic model from 1965 features a 44mm Gold-Plated case. Powered by the 5643 caliber with 21j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-6e0c32f5a8a0]

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1965

Related Models

• Seiko 3820-315
• Seiko 0726-199
• Seiko 6144-294
• Seiko 7152-732
• Seiko 4444-860
• Seiko 6333-994
• Seiko 4485-898
• Seiko 5254-933
• Seiko 3868-223
• Seiko 3895-846
• Seiko 6660-497
• Seiko 0716-457