Seiko Cal. 4522 - 343

This Spring Drive model from 1977 features a 40mm Stainless Steel case. Powered by the 4522 caliber with 33j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-a6942f002b86]

Also known as: Tuna, UFO

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1977

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