Seiko Cal. 4581 - 422

The Seiko 4581-422 represents an important milestone in Seiko's 1972 lineup. Powered by the 4581 caliber with 29j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-b4fe06db4fee]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1972

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