Seiko Cal. 5639 - 187

This Quartz model from 1965 features a 37mm Hardlex-Coated Steel case. Powered by the 5639 caliber with 34j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-16a2408c5df7]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1965

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