Seiko Cal. 5640 - 179

This Quartz model from 1974 features a 35mm Titanium case. Powered by the 5640 caliber with 30j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-d7b5f21863c5]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1974

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