Seiko Cal. 5645 - 879

This Quartz model from 1972 features a 35mm PVD Black case. Powered by the 5645 caliber with 35j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-c6f6f3a7d49b]

Also known as: Tuna, Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1972

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