Seiko Cal. 5684 - 384

The Seiko 5684-384 represents an important milestone in Seiko's 1967 lineup. Powered by the 5684 caliber with 31j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-8c8c0d2bb5c0]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1967

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