Seiko Cal. 5678 - 369

This Hand-Winding model from 1968 features a 35mm Hardlex-Coated Steel case. Powered by the 5678 caliber with 33j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-a18bb3f32b58]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1968

Related Models

• Seiko 5637-978
• Seiko 7081-191
• Seiko 7072-826
• Seiko 0740-104
• Seiko 7178-620
• Seiko 7176-246
• Seiko 5651-695
• Seiko 7187-660
• Seiko 0715-515
• Seiko 5679-189
• Seiko 6684-782
• Seiko 6183-857