Seiko Cal. 4576 - 641

The Seiko 4576-641 represents an important milestone in Seiko's 1970 lineup. Powered by the 4576 caliber with 29j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-4fdd95b9fa00]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1970

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