Seiko Cal. 5628 - 410

The Seiko 5628-410 represents an important milestone in Seiko's 1976 lineup. Powered by the 5628 caliber with 33j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-498a3da40ec0]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1976

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