Seiko Cal. 4413 - 844

The Seiko 4413-844 represents an important milestone in Seiko's 1977 lineup. Powered by the 4413 caliber with 28j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-3d5ce77a7084]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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