Seiko Cal. 5628 - 645

The 5628-645 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5628 caliber with 19j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-50769d161446]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1980

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