Seiko Cal. 5678 - 939

This Solar model from 1965 features a 35mm Gold-Plated case. Powered by the 5678 caliber with 33j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-14212019c5c4]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1965

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