Seiko Cal. 4580 - 321

This Spring Drive model from 1970 features a 36mm Stainless Steel case. Powered by the 4580 caliber with 34j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-b15c3ea056c2]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1970

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