Seiko Cal. 5639 - 853

This Spring Drive model from 1974 features a 44mm Hardlex-Coated Steel case. Powered by the 5639 caliber with 23j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-3e3079828ea7]

Also known as: Emperor, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1974

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