Seiko Cal. 4567 - 284

This Spring Drive model from 1968 features a 41mm Stainless Steel case. Powered by the 4567 caliber with 17j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-581ac31b14a6]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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