Seiko Cal. 5656 - 630

This Spring Drive model from 1971 features a 34mm Gold-Plated case. With its 21mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-c10882093764]

Also known as: Navigator, Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1971

Related Models

• Seiko 7140-846
• Seiko 7097-356
• Seiko 6210-246
• Seiko 0749-366
• Seiko 4552-219
• Seiko 5237-365
• Seiko 6239-274
• Seiko 6117-675
• Seiko 6266-801
• Seiko 6165-494
• Seiko 6620-125
• Seiko 6659-392