Seiko Cal. 4413 - 521

The Seiko 4413-521 represents an important milestone in Seiko's 1977 lineup. Powered by the 4413 caliber with 29j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-d28b6d1566ca]

Also known as: Shogun, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1977

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