Seiko Cal. 5628 - 813

This Hand-Winding model from 1971 features a 44mm Stainless Steel case. Powered by the 5628 caliber with 18j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-507cfe3e8b70]

Also known as: Navigator, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1971

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